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AX88772BLF

AX88772BLF

  • 厂商:

    ASIX(亚信)

  • 封装:

    LQFP64_7X7MM

  • 描述:

    低功耗USB 2.0至10/100M快速以太网控制器

  • 数据手册
  • 价格&库存
AX88772BLF 数据手册
AX88772BLF / AX88772BLI Low-Power USB 2.0 to 10/100M Fast Ethernet Controller Features Single chip USB 2.0 to 10/100M Fast Ethernet controller Single chip USB 2.0 to RMII, support HomePNA and HomePlug PHY Single chip USB 2.0 to Reverse-RMII, supports glueless MAC-to-MAC connections USB Device Interface Integrates on-chip USB 2.0 transceiver and SIE compliant to USB Spec 1.1 and 2.0 Supports USB Full and High Speed modes with Bus-Power or Self-Power capability Supports 4 or 6 programmable endpoints on USB interface Supports AutoDetach power saving. Detach from USB host when Ethernet cable is unplugged High performance packet transfer rate over USB bus using proprietary burst transfer mechanism (US Patent Approval) Fast Ethernet Controller Integrates 10/100Mbps Fast Ethernet MAC/PHY IEEE 802.3 10BASE-T/100BASE-TX compatible IEEE 802.3 100BASE-FX compatible Supports twisted pair crossover detection and auto-correction (HP Auto-MDIX) Embedded SRAM for RX/TX packet buffering Supports IPv4/ IPv6 packet Checksum Offload Engine(COE) to reduce CPU loading, including IPv4 IP/TCP/UDP/ICMP/IGMP & IPv6 TCP/UDP/ICMPv6 checksum check & generation Supports full duplex operation with IEEE 802.3x flow control and half duplex operation with back-pressure flow control Supports 2 VLAN ID filtering, received VLAN Tag (4 bytes) can be stripped off or preserved PHY loop-back diagnostic capability Document No: AX88772B/V1.06/02/27/13 Support Wake-on-LAN Function Supports Suspend Mode and Remote Wakeup via Link-change, Magic packet, MS wakeup frame and external wakeup pin Supports Protocol Offload (ARP & NS) for Windows 7 Networking Power Management Optional PHY power down during Suspend Mode Versatile External Media Interface Optional RMII interface in MAC mode allows AX88772B to work with HomePNA and HomePlug PHY Optional Reverse-RMII interface in PHY mode allows AX88772B to support glueless MAC-to-MAC connections Advanced Power Management Features Supports dynamic power management to reduce power dissipation during idle or light traffic Supports very low power Wake-on-LAN (WOL) mode when the system enters suspend mode and waits for network events to wake it up. Supports 256/512 bytes (93c56/93c66) of serial EEPROM (for storing USB Descriptors) Supports embedded Device Descriptors ROM and 512 bytes ID-SRAM (online programmable memory for USB Device Descriptors, etc) to save external EEPROM Supports automatic loading of Ethernet ID, USB Descriptors and Adapter Configuration from EEPROM after power-on initialization Integrates on-chip voltage regulator and only requires a single 3.3V power supply Single 25MHz clock input from either crystal or oscillator source Integrates on-chip power-on reset circuit Small form factor with 64-pin LQFP RoHS compliant package Operating commercial temperature range 0°C to 70°C or industriure range -40 to +85°C ASIX ELECTRONICS CORPORATION 4F, NO.8, Hsin Ann Rd., Hsinchu Science Park, Hsin-Chu City, Taiwan, R.O.C. 300 TEL: 886-3-579-9500 FAX: 886-3-579-9558 Released Date: 02/27/2013 http://www.asix.com.tw/ AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Target Applications PC/Internet Consumer Electronics Figure 1 : Target Applications 2 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Typical System Block Diagrams  Hosted by USB to operate with internal Ethernet PHY only To USB 2.0 Host I/F AX88772B EEPROM Ethernet PHY OR Magnetic Optical Fiber Transceiver RJ45 Figure 2  : USB 2.0 to LAN Adaptor (MAC mode) Hosted by USB to operate with either internal Ethernet PHY or RMII (in MAC mode) To USB 2.0 Host I/F AX88772B EEPROM Ethernet PHY MDC MDIO RMII OR Magnetic PHYceiver Optical Fiber Transceiver RJ45 Figure 3 : USB 2.0 to Fast Ethernet and external PHYceiver Combo (MAC mode) 3 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller  Hosted by USB to operate with either internal Ethernet PHY (in MAC mode) or Reverse-RMII (in PHY mode) To USB 2.0 Host I/F AX88772B EEPROM Ethernet PHY MDC MDIO Reverse-RMII (No oscillator or buffer required) OR Magnetic Optical Fiber Ethernet MAC Embedded MCU Transceiver RJ45 Figure 4 : Bridging Embedded MCU to USB 2.0 Host Interface (PHY mode) To USB 2.0 Host I/F AX88772B EEPROM Ethernet PHY MDC MDIO Reverse-RMII (No oscillator or buffer required) OR HomePlug PHY Magnetic Optical Fiber Transceiver RJ45 Figure 5 PowerLine : USB 2.0 to HomePlug Adaptor (PHY mode) 4 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. DISCLAIMER No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of ASIX. ASIX may make changes to the product specifications and descriptions in this document at any time, without notice. ASIX provides this document “as is” without warranty of any kind, either expressed or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement. Designers must not rely on the absence or characteristics of any features or registers marked “reserved”, “undefined” or “NC”. ASIX reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. Always contact ASIX to get the latest document before starting a design of ASIX products. TRADEMARKS ASIX, the ASIX logo are registered trademarks of ASIX Electronics Corporation. All other trademarks are the property of their respective owners. 5 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Table of Contents 1 INTRODUCTION .................................................................................................................................................. 10 1.1 1.2 1.3 2 SIGNAL DESCRIPTION ...................................................................................................................................... 12 2.1 2.2 3 GENERAL DESCRIPTION ..................................................................................................................................... 10 BLOCK DIAGRAM .............................................................................................................................................. 10 PINOUT DIAGRAM .............................................................................................................................................. 11 PINOUT DESCRIPTION ........................................................................................................................................ 12 HARDWARE SETTING FOR OPERATION MODE AND MULTI-FUNCTION PINS ...................................................... 15 FUNCTION DESCRIPTION ................................................................................................................................ 17 3.1 USB CORE AND INTERFACE .............................................................................................................................. 17 3.2 10/100M ETHERNET PHY ................................................................................................................................. 17 3.3 MAC CORE ....................................................................................................................................................... 17 3.4 CHECKSUM OFFLOAD ENGINE (COE)................................................................................................................ 18 3.5 OPERATION MODE ............................................................................................................................................. 18 3.6 STATION MANAGEMENT (STA) ......................................................................................................................... 21 3.7 MEMORY ARBITER ............................................................................................................................................ 23 3.8 USB TO ETHERNET BRIDGE ............................................................................................................................... 23 3.8.1 Ethernet/USB Frame Format Bridge ........................................................................................................ 23 3.9 SERIAL EEPROM LOADER ................................................................................................................................ 23 3.10 GENERAL PURPOSE I/O...................................................................................................................................... 23 3.11 CLOCK GENERATION ......................................................................................................................................... 24 3.12 RESET GENERATION .......................................................................................................................................... 25 3.13 VOLTAGE REGULATOR ...................................................................................................................................... 25 4 SERIAL EEPROM MEMORY MAP ................................................................................................................... 26 4.1 DETAILED DESCRIPTION .................................................................................................................................... 27 4.2 INTERNAL ROM DEFAULT SETTINGS ................................................................................................................ 30 4.2.1 Internal ROM Description ........................................................................................................................ 31 4.2.2 External EEPROM Description ................................................................................................................ 33 5 USB CONFIGURATION STRUCTURE ............................................................................................................. 34 5.1 5.2 5.3 6 USB CONFIGURATION ....................................................................................................................................... 34 USB INTERFACE ................................................................................................................................................ 34 USB ENDPOINTS................................................................................................................................................ 34 USB COMMANDS ................................................................................................................................................. 35 6.1 USB STANDARD COMMANDS ............................................................................................................................ 35 6.2 USB VENDOR COMMANDS ................................................................................................................................ 36 6.2.1 Detailed Register Description ................................................................................................................... 38 6.3 INTERRUPT ENDPOINT ....................................................................................................................................... 63 6.4 BULK-OUT TIMER AND MONITOR (BOTM)....................................................................................................... 64 7 EMBEDDED ETHERNET PHY REGISTER DESCRIPTION ......................................................................... 65 7.1 PHY REGISTER DETAILED DESCRIPTION ........................................................................................................... 65 7.1.1 Basic Mode Control Register (BMCR) ..................................................................................................... 66 7.1.2 Basic Mode Status Register (BMSR) ......................................................................................................... 67 7.1.3 PHY Identifier Register 1 (PHYIDR1) ...................................................................................................... 68 7.1.4 PHY Identifier Register 2 (PHYIDR2) ...................................................................................................... 68 7.1.5 Auto Negotiation Advertisement Register (ANAR).................................................................................... 68 7.1.6 Auto Negotiation Link Partner Ability Register (ANLPAR) ...................................................................... 69 7.1.7 Auto Negotiation Expansion Register (ANER) ......................................................................................... 69 8 STATION MANAGEMENT REGISTERS IN PHY MODE ............................................................................. 70 8.1 PHY MODE DETAILED REGISTER DESCRIPTION ................................................................................................ 71 6 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.1.6 8.1.7 8.1.8 9 PHY Mode Basic Mode Control Register (PM_BMCR) ........................................................................... 71 PHY Mode Basic Mode Status Register (PM_BMSR) .............................................................................. 72 PHY Mode PHY Identifier Register 1 (PM_PHYIDR1) ............................................................................ 73 PHY Mode PHY Identifier Register 2 (PM_PHYIDR2) ............................................................................ 73 PHY Mode Auto Negotiation Advertisement Register (PM_ANAR) ......................................................... 73 PHY Mode Auto Negotiation Link Partner Ability Register (PM_ANLPAR) ........................................... 74 PHY Mode Auto Negotiation Expansion Register (PM_ANER) ............................................................... 74 PHY Mode Control Register (PM_Control) ............................................................................................. 75 ELECTRICAL SPECIFICATIONS ..................................................................................................................... 76 9.1 DC CHARACTERISTICS ...................................................................................................................................... 76 9.1.1 Absolute Maximum Ratings ...................................................................................................................... 76 9.1.2 Recommended Operating Condition ......................................................................................................... 76 9.1.3 Leakage Current and Capacitance ........................................................................................................... 77 9.1.4 DC Characteristics of 3.3V I/O Pins ........................................................................................................ 77 9.1.5 DC Characteristics of 3.3V with 5V Tolerance I/O Pins .......................................................................... 78 9.1.6 DC Characteristics of Voltage Regulator ................................................................................................. 78 9.1.7 DC Characteristics of Fiber Interface ...................................................................................................... 79 9.2 THERMAL CHARACTERISTICS ............................................................................................................................ 80 9.3 POWER CONSUMPTION ...................................................................................................................................... 80 9.4 POWER-UP SEQUENCE ....................................................................................................................................... 81 9.5 AC TIMING CHARACTERISTICS .......................................................................................................................... 82 9.5.1. Clock Timing ............................................................................................................................................. 82 9.5.2. Reset Timing ............................................................................................................................................. 82 9.5.3. Serial EEPROM Timing ............................................................................................................................ 83 9.5.4. Station Management Timing ..................................................................................................................... 84 9.5.5. RMII / Reverse-RMII Timing .................................................................................................................... 85 9.5.6. 10/100M Ethernet PHY Interface Timing ................................................................................................. 86 9.5.7. USB Transceiver Interface Timing ........................................................................................................... 87 10 10.1 PACKAGE INFORMATION ............................................................................................................................ 89 AX88772B 64-PIN LQFP PACKAGE .................................................................................................................. 89 11 ORDERING INFORMATION .......................................................................................................................... 90 12 REVISION HISTORY ....................................................................................................................................... 91 APPENDIX A. DEFAULT WAKE-ON-LAN (WOL) READY MODE .................................................................... 92 APPENDIX B. ETHERNET PHY POWER AND RESET CONTROL .................................................................... 95 APPENDIX C. EXTERNAL EEPROM / INTERNAL ROM / INTERNAL ID-SRAM OF VENDER DESCRIPTIONS SELECTION .................................................................................................................................... 97 7 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller List of Figures FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 FIGURE 5 FIGURE 6 FIGURE 7 FIGURE 8 FIGURE 9 FIGURE 10 FIGURE 11 FIGURE 12 FIGURE 13 FIGURE 14 FIGURE 15 FIGURE 16 FIGURE 17 FIGURE 18 FIGURE 19 FIGURE 20 FIGURE 21 FIGURE 22 FIGURE 23 FIGURE 24 : TARGET APPLICATIONS ................................................................................................................................. 2 : USB 2.0 TO LAN ADAPTOR (MAC MODE) .................................................................................................... 3 : USB 2.0 TO FAST ETHERNET AND EXTERNAL PHYCEIVER COMBO (MAC MODE) ........................................ 3 : BRIDGING EMBEDDED MCU TO USB 2.0 HOST INTERFACE (PHY MODE)..................................................... 4 : USB 2.0 TO HOMEPLUG ADAPTOR (PHY MODE) .......................................................................................... 4 : BLOCK DIAGRAM ........................................................................................................................................ 10 : PINOUT DIAGRAM ........................................................................................................................................ 11 : INTERNAL DATA PATH DIAGRAM OF 10/100M ETHERNET PHY AND RMII/REVERSE-RMII INTERFACES .. 17 : RMII TO EXTERNAL PHY CHIP WITH 50MHZ OSC .................................................................................... 19 : RMII INTERFACE TO EXTERNAL PHY CHIP ............................................................................................. 19 : REVERSE-RMII TO EXTERNAL MAC DEVICE WITH 50MHZ OSC .......................................................... 20 : REVERSE-RMII INTERFACE TO EXTERNAL MAC DEVICE ....................................................................... 20 : INTERNAL CONTROL MUX OF STATION MANAGEMENT INTERFACE IN MAC MODE ............................... 21 : INTERNAL CONTROL MUX OF STATION MANAGEMENT INTERFACE IN PHY MODE ................................ 22 : ONE EXTERNAL 1M OHM RESISTOR ON 25MHZ CRYSTAL OSCILLATOR IS NECESSARY ............................ 25 : WATER LEVEL SETTING FOR FLOW CONTROL ........................................................................................... 29 : MULTICAST FILTER EXAMPLE ................................................................................................................. 43 : MULTICAST FILTER ARRAY HASHING ALGORITHM ................................................................................. 44 : MULTICAST FILTER ARRAY BIT MAPPING ............................................................................................... 44 : 802.1Q VLAN PACKET FORMAT ............................................................................................................. 54 : STATION MANAGEMENT FRAME FOR PHY MODE ................................................................................... 70 : ETHERNET PHY OSCILLATOR/PLL BLOCK DIAGRAM ............................................................................. 95 : ETHERNET PHY POWER-UP & RESET TIMING DIAGRAM ......................................................................... 96 : EXTERNAL EEPROM / INTERNAL ROM / INTERNAL ID-SRAM OF VENDER DESCRIPTIONS SELECTION 98 8 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller List of Tables TABLE 1 TABLE 2 TABLE 3 TABLE 4 TABLE 5 TABLE 6 TABLE 7 TABLE 8 TABLE 9 TABLE 10 TABLE 11 TABLE 12 TABLE 13 TABLE 14 TABLE 15 : PINOUT DESCRIPTION .................................................................................................................................. 14 : MFA_3 ~ MFA_0 PIN CONFIGURATION ....................................................................................................... 15 : PHY_ID DEFINITION SOURCE ..................................................................................................................... 18 : THE EXTERNAL 25MHZ CRYSTAL UNITS SPECIFICATIONS .......................................................................... 24 : SERIAL EEPROM MEMORY MAP ................................................................................................................ 26 : INTERNAL ROM MEMORY MAP .................................................................................................................. 30 : INTERNAL ROM DESCRIPTION .................................................................................................................... 31 : USB STANDARD COMMAND REGISTER MAP ............................................................................................... 35 : USB VENDOR COMMAND REGISTER MAP ................................................................................................... 37 : WAKE-UP FRAME ARRAY REGISTER (WUD3~0) STRUCTURE DEFINITION ............................................. 50 : VID1, VID2 SETTING TO FILTER RECEIVED PACKET ................................................................................ 53 : EMBEDDED ETHERNET PHY REGISTER MAP ........................................................................................... 65 : STATION MANAGEMENT REGISTER MAP IN PHY MODE ......................................................................... 70 : POWER CONSUMPTION ............................................................................................................................. 80 : REMOTE WAKEUP TRUTH TABLE ............................................................................................................ 93 9 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 1 Introduction 1.1 General Description The AX88772B Low-power USB 2.0 to 10/100M Fast Ethernet controller is a high performance and highly integrated ASIC which enables low cost, small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops, notebook PC’s, Ultra-Mobile PC’s, docking stations, game consoles, digital-home appliances, and any embedded system using a standard USB port. The AX88772B features a USB interface to communicate with a USB Host Controller and is compliant with USB specification V1.1 and V2.0. The AX88772B implements a 10/100Mbps Ethernet LAN function based on IEEE802.3, and IEEE802.3u standards with embedded SRAM for packet buffering. The AX88772B integrates an on-chip 10/100Mbps Ethernet PHY to simplify system design. The AX88772B provides an optional Multi-Function-Bus portion A and B (MFA and MFB) for external PHY or external MAC for different application purposes. The MFA/MFB can be a reduce-media-independent interface (RMII) for implementing HomePlug, HomePNA, etc. functions. The MFA/MFB can also be a Reverse Reduced-MII (Reverse-RMII) for glueless MAC-to-MAC connections to any MCU with Ethernet MAC RMII interface. In addition, the MFA/MFB can be configured as general purpose I/O. 1.2 Block Diagram Packet Buffer SRAM Memory Arbiter COE MAC Core 10/100M Ethernet PHY ID SRAM EECS EECK EEDIO SEEPROM Loader I/F USB to Ethernet Bridge PHY/MAC mode Bridge General Purpose I/O 3.3 to 1.8V Regulator USB Core and Interfaces PLL Clock Generators XTL25P, XTL25N Figure 6 MFB1~7 for RMII or Rev-RMII MFA0, 1 for MDC / MDIO STA GPIO_2~0, MFB0, etc. RXIP/RXIN TXOP/TXON Power-On-Reset & Reset Gen. DP/DM RESET_N : Block Diagram 10 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 1.3 Pinout Diagram MFB2 MFB1 MFB0 VCCK GND EECK EECS EEDIO TCLK_1 TCLK_0 TCLK_EN VCC3IO RESET_N TEST1 TEST0 GND  64-pin LQFP package 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 32 MFB3 31 MFB4 30 MFB5 29 MFB6 28 MFB7 27 GPIO_0/PME 26 GPIO_1 25 GPIO_2 24 VCCK 23 EXTWAKEUP_N 22 GND 21 MFA3/PHY_N 20 VCCK 19 MFA2/RMII_N 18 MFA1/MDIO 17 MFA0/MDC Figure 7 VCC3IO GND GND18A TXON RSET_BG 9 10 11 12 13 14 15 16 TXOP GND18A 8 VCC18A XTL25N 6 7 RXIN 5 RXIP 4 GND18A 3 SD 2 VCC3A3 1 XTL25P AX88772B VCC18A VCCK V_BUS V18F VCC3R3 GND3R3 GND33A_PLL GND33A_H DP DM RREF VCC33A_PLL VCC33A_H X2 X1 GND18A_PLL VCC18A_PLL : Pinout Diagram 11 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 2 Signal Description The following abbreviations apply to the following pin description table. I18 I3 I5 O3 B5 P Input, 1.8V Input, 3.3V Input, 3.3V with 5V tolerant Output, 3.3V Bi-directional I/O, 3.3V with 5V tolerant Power Pin AI Analog Input AO Analog Output AB Analog Bi-directional I/O PU Internal Pull Up (75K) PD Internal Pull Down (75K) S Schmitt Trigger T Tri-stateable Note: Every output or bi-directional I/O pin is 8mA driving strength. 2.1 Pinout Description Pin Name Type Pin No DP DM V_BUS RREF AB AB I5/PD/S AI 56 57 50 58 EECK B5/PD/ T 38 EECS B5/PD/ T 39 EEDIO B5/PU/ T 40 XTL25P I18 2 XTL25N RXIP RXIN TXOP TXON RSET_BG O18 AB AB AB AB AO 3 9 10 12 13 5 RESET_N I5/PU/S 45 EXTWAKEUP_N I5/PU/S 23 GPIO_2 GPIO_1 B5/PD B5/PD 25 26 Pin Description USB Interface USB 2.0 data positive pin. USB 2.0 data negative pin. VBUS pin input. Please connect to USB bus power. For USB PHY’s internal biasing. Please connect to analog GND through a resistor (12.1Kohm ±1%). Serial EEPROM Interface EEPROM Clock. EECK is an output clock to EEPROM to provide timing reference for the transfer of EECS, and EEDIO signals. EECK only drive high / low when access EEPROM otherwise keep at tri-state and internal pull-down. EEPROM Chip Select. EECS is asserted high synchronously with respect to rising edge of EECK as chip select signal. EECS only drive high / low when access EEPROM otherwise keep at tri-state and internal pull-down. EEPROM Data In. EEDIO is the serial output data to EEPROM’s data input pin and is synchronous with respect to the rising edge of EECK. EEDIO only drive high / low when access EEPROM otherwise keep at tri-state and internal pull-up. Ethernet PHY Interface 25Mhz ± 0.005% crystal or oscillator clock input. This clock is needed for the embedded 10/100M Ethernet PHY to operate. 25Mhz crystal or oscillator clock output. Receive data input positive pin for both 10BASE-T and 100BASE-TX. Receive data input negative pin for both 10BASE-T and 100BASE-TX. Transmit data output positive pin for both 10BASE-T and 100 BASE-TX Transmit data output negative pin for both 10BASE-T and 100 BASE-TX For Ethernet PHY’s internal biasing. Please connect to GND through a 12.1Kohm ±1% resistor. Misc. Pins Chip reset input. Active low. This is the external reset source used to reset this chip. This input feeds to the internal power-on reset circuitry, which provides the main reset source of this chip. After completing reset, EEPROM data will be loaded automatically. Remote-wakeup trigger from external pin. EXTWAKEUP_N should be asserted low for more than 2 cycles of 25MHz clock to be effective. General Purpose Input/ Output Pin 2. General Purpose Input/ Output Pin 1. This pin is default as input pin after power-on reset. This pin is also for Default WOL Ready Mode setting; please refer to section 2.2 Settings. 12 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller GPIO_0/PME B5/PD 27 MFB7 B5/PU I5 I5 MFB6 B5/PU I5 I5 MFB5/ REF50 B5/PU B5 MFB4 31 MFB0 B5/PU O3 O3 B5/PU O3 O3 B5/PU O3 O3 B5/PU I5 I5 B5/PU MFA3/ PHY_N O3 I5/PU 21 MFA2/ RMII_N O3 I5/PU 19 MFA1/ MDIO O3 B5/PU 18 28 29 30 MFB3 MFB2 MFB1 32 33 34 35 General Purpose Input/ Output Pin 0 or PME (Power Management Event). This pin is default as input pin after power-on reset. GPIO_0 also can be defined as PME output to indicate wake up event detected. Please refer to section 2.2 Settings. This is a multi-function pin. Please refer to section 2.2 Settings. MFB7: RMII : RXD0 Reverse_RMII : TXD0 This is a multi-function pin. Please refer to section 2.2 Settings. MFB6: RMII : RXD1 Reverse_RMII : TXD1 This is a multi-function pin. Please refer to section 2.2 Settings. MFB5: When RMII enable, The REF50 in/out direction is determined by EEPROM Flag [1] setting. Please refer to section 2.2 Settings. This is a multi-function pin. Please refer to section 2.2 Settings. RMII : TXD0 Reverse_RMII : RXD0 This is a multi-function pin. Please refer to section 2.2 Settings. RMII : TXD1 Reverse_RMII : RXD1 This is a multi-function pin. Please refer to section 2.2 Settings. RMII : TXEN Reverse_RMII : CRSDV This is a multi-function pin. Please refer to section 2.2 Settings. RMII : CRSDV Reverse_RMII : TXEN This is a GPIO pin. Please refer to section 2.2 Settings. It is a multi-function pin. The default is USB Speed indicator. When USB bus is in Full speed, this pin will tri-state continuously. When USB bus is in High speed, this pin drives low continuously. This pin tri-state and drive low in turn (blinking) to indicate TX data transfer going on whenever the host controller sends bulk out data transfer. MFB1~7 bus is determined by setting of this input pin when MFA2 sets 0: 0: Reverse_RMII (PHY mode). 1: RMII (MAC mode). Please refer to PIN configuration of MFA and MFB in section 2.2 Settings. It is a multi-function pin. The default is Link status LED indicator. This pin drives low continuously when the Ethernet link is up and drives low and high in turn (blinking) when Ethernet PHY is in receiving or transmitting state. MFB1~7 function is determined by setting of this input pin: 0: Reverse_RMII/RMII . 1: MFB bus as GPIO function. Please refer to PIN configuration of MFA and MFB in section 2.2 Settings. It is a multi-function pin. The default is Ethernet speed LED indicator. This pin drives low when the Ethernet PHY is in 100BASE-TX mode and drives high when in 10BASE-T mode. This pin can perform as MDIO when enabling Reverse_RMII/RMII. 13 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller MFA0/ MDC SD TEST0 TEST1 X1 X2 TCLK_EN TCLK_0 TCLK_1 VCC3R3 GND3R3 V18F VCCK VCC3IO GND VCC33A_H GND33A_H VCC33A_PLL GND33A_PLL VCC3A3 VCC18A GND18A VCC18A_PLL GND18A_PLL O3 17 It is a multi-function pin. The default is Full Duplex and collision detected LED indicator. This pin drives low when the Ethernet PHY is in full-duplex mode and drives high when in half duplex mode. When in half duplex mode and the Ethernet PHY detects collision, it will be driven low (or blinking). This pin can perform as MDC when enabling Reverse_RMII/RMII: RMII : Output. Reverse_RMII : Input. 7 Fiber signal detected Twisted pair operation: Please connect to GND directly or through a resistor. Fiber operation: Please connect to the fiber transceiver signal detect output pin. Please refer to Section 9.1.7 for the detailed SD signal DC Characteristics spec. I5/S 47 Test pin. For normal operation, user should connect to ground. I5/S 46 Test pin. For normal operation, user should connect to ground. I3 62 Test pin. For normal operation, user should connect to ground. O3 61 Test pin. No connection I5/PD/S 43 Test pin. For normal operation, user should keep this pin NC. I5/PD 42 Test pin. For normal operation, user should keep this pin NC. I5/PD 41 Test pin. For normal operation, user should keep this pin NC. On-chip Regulator Pins P 52 3.3V Power supply to on-chip 3.3V to 1.8V voltage regulator. P 53 Ground pin of on-chip 3.3V to 1.8V voltage regulator. P 51 1.8V voltage output of on-chip 3.3V to 1.8V voltage regulator. Power and Ground Pins P 20, 24, 36, 49 Digital Core Power. 1.8V. P 16, 44 Digital I/O Power. 3.3V. P 15, 22, 37, 48 Digital Ground. P 60 Analog Power for USB transceiver. 3.3V. P 55 Analog Ground for USB transceiver. P 59 Analog Power for USB PLL. 3.3V. P 54 Analog Ground for USB PLL. P 6 Analog Power for Ethernet PHY bandgap. 3.3V. P 1, 11 Analog Power for Ethernet PHY and 25Mhz crystal oscillator. 1.8V. P 4, 8, 14 Analog Ground for Ethernet PHY and 25Mhz crystal oscillator. P 64 Analog Power for USB PLL. 1.8V. P 63 Analog Ground for USB PLL. O3 I5/PU I Table 1 : Pinout Description 14 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 2.2 Hardware Setting For Operation Mode and Multi-Function Pins The following hardware settings define the desired function or interface modes of operation for some multi-function pins. The logic level shown on setting pin below is loaded from the chip I/O pins during power on reset based on the setting of the pin’s pulled-up (as logic ‘1’) or pulled-down (as logic ‘0’) resister on the schematic.  Chip Operation Mode setting : Pin# 19, Pin #21 1x (default) 01 00 Operation Modes MAC mode Internal PHY MAC mode RMII PHY mode Reverse-RMII Remarks The Chip Operation Mode is determined by Pin# 19 (MFA2/RMII_N) and Pin #21 (MFA3/PHY_N) value of AX88772B, which is called hardware setting.  EECK pin: USB force to Full Speed mode : EECK 0 1 Description Normal operation (default). USB force to Full Speed mode. External pull-up resistor must be 4.7Kohm.  GPIO_1 pin: Determines whether this chip will go to Default WOL Ready Mode after power on reset. The WOL stands for Wake-On-LAN. GPIO_1 0 1 Description Normal operation mode (default, see Note 1). Enable Default WOL Ready Mode. Notice that the external pulled-up resistor must be 4.7Kohm. For more details, please refer to APPENDIX A. Default Wake-On-LAN (WOL) Ready Mode Note 1: This is the default with internal pulled-down resistor and doesn’t need an external one.  EEPROM Flag [12]: Defines the multi-function pin GPIO_0 / PME GPIO_0 is a general purpose I/O normally controlled by vendor commands. Users can change this pin to operate as a PME (Power Management Event) for remote wake up purpose. Please refer to 4.1.2 Flag of bit 12 (PME_PIN).  MFA_3 ~ MFA_0 pins: There are 4 multi-function pins for LED display purpose and as GPIO control by vendor command. PIN Name Default definition Vendor Command LED_MUX Vendor Command VMFAIO RMII_N enable MFA3 MFA2 MFA1 MFA0 LED_USB indicater LED_Ethernet_LINK_Active LED_Ethernet_Speed LED_Ethernet_Duplex_Collision Sel_LED3 Sel_LED2 Sel_LED1 Sel_LED0 MFAIO_3 MFAIO_2 MFAIO_1 MFAIO_0 MDIO MDC Table 2 : MFA_3 ~ MFA_0 pin configuration 15 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller  PIN configuration of MFA and MFB Pin# 19 Pin #21 MFA2/RMII_N MFA3/PHY_N 1: MFB7~MFB0 1: MAC Mode 0: RMII 0: PHY Mode 1 X 1 X 1 X 1 X 1 X 1 X 1 X 1 X 1 X Description PIN Name MFB0 MFB1 MFB2 MFB3 MFB4 MFB5 MFB6 MFB7 MFA0 1 X MFA1 1 X MFA2 1 X MFA3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 MFB0 MFB1 MFB2 MFB3 MFB4 MFB5 MFB6 MFB7 MFA0 MFA1 MFB0 MFB1 MFB2 MFB3 MFB4 MFB5 MFB6 MFB7 MFA0 MFA1 Function Pin Type MFBIO0 MFBIO1 MFBIO2 MFBIO3 MFBIO4 MFBIO5 MFBIO6 MFBIO7 Refer to MFA Configuration Refer to MFA Configuration Refer to MFA Configuration Refer to MFA Configuration MFBIO0 CRSDV TXEN TXD1 TXD0 REF50 RXD1 RXD0 MDC MDIO MFBIO0 TXEN CRSDV RXD1 RXD0 REF50 TXD1 TXD0 MDC MDIO Bidirection, controlled by MFBIOEN0 Bidirection, controlled by MFBIOEN1 Bidirection, controlled by MFBIOEN2 Bidirection, controlled by MFBIOEN3 Bidirection, controlled by MFBIOEN4 Bidirection, controlled by MFBIOEN5 Bidirection, controlled by MFBIOEN6 Bidirection, controlled by MFBIOEN7 Bidirection, controlled by MFBIOEN0 Input Output Output Output Input/Output control by EEPROM flag[1] Input Input Output I/O Bidirection, controlled by MFBIOEN0 Input Output Output Output Input/Output control by EEPROM flag[1] Input Input Input I/O 16 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 3 Function Description 3.1 USB Core and Interface The USB core and interface contains a USB 2.0 transceiver, serial interface engine (SIE), USB bus protocol handshaking block, USB standard command, vendor command registers, logic for supporting bulk transfer, and an interrupt transfer, etc. The USB interface is used to communicate with a USB host controller and is compliant with USB specification V1.1 and V2.0. 3.2 10/100M Ethernet PHY The 10/100M Fast Ethernet PHY is compliant with IEEE 802.3 and IEEE 802.3u standards. It contains an on-chip crystal oscillator, PLL-based clock multiplier, and a digital phase-locked loop for data/timing recovery. It provides over-sampling mixed-signal transmit drivers compliant with 10/100BASE-TX transmit wave shaping / slew rate control requirements. It has a robust mixed-signal loop adaptive equalizer for receiving signal recovery. It contains a baseline wander corrective block to compensate data dependent offset due to AC coupling transformers. It supports auto-negotiation and auto-MDIX functions. 3.3 MAC Core The MAC core supports 802.3 and 802.3u MAC sub-layer functions, such as basic MAC frame receive and transmit, CRC checking and generation, filtering, forwarding, flow-control in full-duplex mode, and collision-detection and handling in half-duplex mode, etc. It provides a reduce-media-independent interface (RMII) for implementing Fast Ethernet and HomePNA functions. The MAC core interfaces to external RMII/Reverse-RMII interfaces and the embedded 10/100M Ethernet PHY. The selection among the interfaces is done via setting Pin# 19 (MFA2/RMII_N) and Pin #21 (MFA3/PHY_N) of AX88772B package pinout during power on reset (see 2.2) and using the USB vendor command, Software Interface Selection register. Figure 8 shows the data path diagram of 10/100M Ethernet PHY and RMII/Reverse-RMII interfaces to MAC core. RX 10/100 Ethernet PHY TX RMII/Reverse -RMII MAC Core Figure 8 RXIP/RXIN TXOP/TXON REFCLK, RXD [1:0], CRSDV, TXD [1:0], TXEN : Internal Data path Diagram of 10/100M Ethernet PHY and RMII/Reverse-RMII Interfaces 17 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 3.4 Checksum Offload Engine (COE) The Checksum Offload Engine (COE) supports IPv4, IPv6, layer 4 (TCP, UDP, ICMP, ICMPv6 and IGMP) header processing functions and real time checksum calculation in hardware The COE supports the following features in layer 3:  IP header parsing, including IPv4 and IPv6  IPv6 routing header type 0 supported  IPv6 in IPv4 tunnel supported  IPv4 header checksum check and generation (There is no checksum field in IPv6 header)  Version error detecting on RX direction for IP packets with version != 4 or 6  Detecting on RX direction for IP packets with error header checksum The COE supports the following features in layer 4:  TCP and UDP checksum check and generation for non-fragmented packet  ICMP, ICMPv6 and IGMP message checksum check and generation for non-fragmented packet  Packet filtering or checksum error indication on RX direction for TCP/UDP/ICMP/ICMPv6/IGMP packets with error checksum 3.5 Operation Mode For simple USB 2.0 to Ethernet applications, user can use the AX88772B, which operates with internal Ethernet PHY. AX88772B supports following three operation modes: (Ref. 2.2 Hardware Setting For Operation Mode And Multi-Function Pins) 1. MAC mode 2. PHY mode Below provides a detailed description for the three operation modes:  In MAC mode, the AX88772B Ethernet block is configured as an Ethernet MAC. From a system application standpoint, AX88772B can be used as a USB 2.0 to LAN Adaptor (see Figure 2) or a USB 2.0 to Fast Ethernet and HomePNA Combo (see Figure 3). In MAC mode, the AX88772B internal datapath can work with internal Ethernet PHY or RMII interface by setting Software Interface Selection register. Note that the PHY_ID for the internal Ethernet PHY and external one are defined in below Table 3. Please refer to below Figure 9, Figure 10 for RMII example.  In PHY mode, the AX88772B Ethernet block is configured as an Ethernet PHY interface. In this case, an external microcontroller with Ethernet MAC can interface with AX88772B as if it were to interface with an Ethernet PHY chip, and AX88772B can act as a USB to Reverse-RMII bridge chip for the microcontroller to provide USB 2.0 device interface for some system applications (see Figure 4). Please refer to below Figure 11, Figure 12 for Reverse-RMII example. STA PHY_ID Embedded Ethernet PHY PHY_ID [4:0] External Media Interface PHY_ID [4:0] MAC mode 10h PHY mode 10h {Secondary PHY_ID [4:0]} {Secondary PHY_ID [4:1], 0} Note: The value of Secondary PHY_ID [4:0] is defined in EEPROM memory map 4.1.6 Table 3 : PHY_ID Definition Source 18 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller External RMII PHY chip AX88772B (MAC mode with RMII) 34 29 28 33 32 31 17 18 30 CRSDV RXD1 RXD0 CRSDV RXD1 RXD0 TXEN TXD1 TXD0 TXEN TXD1 TXD0 MDC MDIO MDC MDIO REF50 REF_CLK 50MHz OSC Figure 9 : RMII to External PHY chip with 50MHz OSC External RMII PHY chip AX88772B (MAC mode with RMII) 34 29 28 CRSDV RXD1 RXD0 CRSDV RXD1 RXD0 33 32 31 TXEN TXD1 TXD0 TXEN TXD1 TXD0 17 18 MDC MDIO MDC MDIO 30 REF50 REF_CLK Figure 10 : RMII Interface to External PHY chip 19 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller TXEN TXD1 TXD0 Ethernet MAC RMII of Embedded MCU TX_EN TXD1 TXD0 33 32 31 CRSDV RXD1 RXD0 CRS_DV RXD1 RXD0 17 18 MDC MDIO MDC MDIO 30 REF50 REF_CLK AX88772B 34 (PHY mode 29 with Rev-RMII) 28 50MHz OSC Figure 11 : Reverse-RMII to External MAC Device with 50MHz OSC TXEN TXD1 TXD0 Ethernet MAC RMII of Embedded MCU TX_EN TXD1 TXD0 33 32 31 CRSDV RXD1 RXD0 CRS_DV RXD1 RXD0 17 18 MDC MDIO MDC MDIO 30 REF50 REF_CLK AX88772B 34 (PHY mode 29 with Rev-RMII) 28 Figure 12 : Reverse-RMII Interface to External MAC Device 20 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 3.6 Station Management (STA) The Station Management interface provides a simple, two-wire, serial interface to connect to a managed PHY device for the purpose of controlling the PHY and gathering status from the PHY. The Station Management interface allows communicating with multiple PHY devices at the same time by identifying the managed PHY with 5-bit, unique PHY_ID. The PHY ID of the embedded 10/100M Ethernet PHY is being pre-assigned to “1_0000”. The Figure 13 shows the internal control MUX of the Station Management interface when doing read in MAC operation mode, the “mdin” signal will be driven from the embedded 10/100M Ethernet PHY only if PHY ID matches with “1_0000”, otherwise, it will always be driven from the external MDIO pin of the ASIC. The Station Management unit also reports the basic PHY status when operating in PHY mode acting as a PHY role (see Figure 14). For detailed register description, please refer to the Station Management Registers in PHY mode (section 0). Embedded 10/100M Ethernet PHY PHY_ID = 1_0000 (Registers refer to Table 12) Station Management accessed from USB Vendor Command External Media Interface (EMI) PHY ID = {Secondary PHY_ID [4:0]} MDC mdout MDIO mdin Station Management to be accessed through Reverse-RMII in PHY mode (Registers refer to Table 13) Figure 13 PM_mdc Fixed to ‘0’ PM_mdout PM_mdin Fixed to ‘0’ : Internal Control MUX of Station Management Interface in MAC mode 21 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Embedded 10/100M Ethernet PHY PHY_ID = 1_0000 (Registers refer to Table 12) mdc Station Management accessed from USB Vendor Command mdout mdin Fixed to ‘1’ Station Management to be accessed through MFB bus in PHY mode PHY ID = {Secondary PHY_ID [4:1], 0} (Registers refer to Table 13) Figure 14 PM_mdc External Media Interface (EMI) MDC PM_mdout PM_mdin MDIO : Internal Control MUX of Station Management Interface in PHY mode 22 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 3.7 Memory Arbiter The memory arbiter block is responsible for storing received MAC frames into on-chip SRAM (packet buffer) and then forwarding it to the USB bus upon request from the USB host via Bulk In transfer. It also monitors the packet buffer usage in full-duplex mode for triggering PAUSE frame (or in half-duplex mode to activate Backpressure jam signal) transmission out on TX direction. The memory arbiter block is also responsible for storing MAC frames received from the USB host via Bulk Out transfer and scheduling transmission out towards Ethernet network. 3.8 USB to Ethernet Bridge The USB to Ethernet bridge block is responsible for converting Ethernet MAC frame into USB packets or vice-versa. This block supports proprietary burst transfer mechanism (US Patent Approval) to offload software burden and to offer very high packet transfer throughput over USB bus. 3.8.1 Ethernet/USB Frame Format Bridge 6 DA Ethernet Frames Super-size network packet 4 Length header 6 SA 6 6 DA SA 2 0~1500 Length/type Data 2 0~1500 Length/type 4 6 6 FC S DA SA 4 Length header Data 2 0~1500 Length/type 6 6 DA SA 4 Data 2 FC S 0~1500 Length/type bytes Data USB Frames IN/OUT Data Ack IN/OUT Data USB packet having the maximun packet size Ack IN/OUT Data Ack USB packet having the maximun packet size USB packet having the maximun packet size IN/OUT Data Short packet 3.9 Serial EEPROM Loader The serial EEPROM loader is responsible for reading configuration data automatically from the external serial EEPROM after power-on reset. If the content of EEPROM offset 0x00 (low byte of first word) is 0x00 or 0xFF, the Serial EEPROM Loader will not auto-load the EEPROM. If the content of EEPROM offset 0x18 (low byte of 18th word) is not equal to (0xFF - SUM [EEPROM offset 07H ~ 0EH]). In that case, the chip internal default value will be used to configure the chip operation setting and to respond to USB commands, etc. 3.10 General Purpose I/O There are 3 general-purpose I/O pins (named GPIO_0/1/2), 8 multi-function pins group B (named MFB0/1/2/3/4/5/6/7) and 4 multi-function pins group A (named MFA0/1/2/3) provided by this ASIC. 23 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Ack AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 3.11 Clock Generation The AX88772B integrates internal oscillator circuits for 25Mhz, respectively, which allow the chip to operate cost effectively with just external 25Mhz crystals. There are also three PLL circuits integrated in the chip to generate precise clocks. The external 25Mhz crystal or oscillator, via pins XTL25P/XTL25N, provides the reference clock to the other two internal PLL circuit to generate a free-run 100Mhz clock source for the Reverse-RMII/RMII modes of AX88772B and a 125Mhz clock source for the embedded Ethernet PHY use. The AX88772B can provide REF50 (50Mhz output) in Reverse-RMII/RMII modes. This output clock is derived from the internal 100Mhz PLL circuit. The external 25Mhz Crystal spec is listed in below table. For more details on crystal timing, please refer to 9.5.1 Clock Timing and AX88772B Demo board schematic reference. Parameter Nominal Frequency Oscillation Mode Frequency Tolerance (@25℃) Frequency Stability Over Operating Temperature Range Equivalent Series Resistance Load Capacitance Symbol Typical Value Fo 25.000000MHz Fundamental ±30ppm ±30ppm ESR CL 70 Ohm max. 20pF 0℃ ~ +70℃, Commerical version Operation Temperature Range -40℃ ~ +85℃, Industrial version ±3ppm/year Aging Table 4 : The external 25MHz Crystal Units specifications For the 25MHz oscillator, its feedback resistor isn’t integrated into the 25MHz oscillator, so it is necessary to add feedback resistor on external circuit. AX88772B XTL25P XTL25N 25MHz 24 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller To implement the external circuits of 25MHz crystal please refer to below. One external 1Mohm resistor on 25MHz crystal oscillator is required. Figure 15 : One external 1M ohm resistor on 25MHz crystal oscillator is necessary 3.12 Reset Generation The AX88772B integrates an internal power-on-reset circuit, which can simplify the external reset circuitry on PCB design. The power-on-reset circuit generates a reset pulse to reset system logic after 1.8V core power ramping up to 1.2V (typical threshold). The external hardware reset input pin, RESET_N, is fed directly to the input of the power-on-reset circuit and can also be used as additional hardware reset source to reset the system logic. For more details on RESET_N timing, please refer to 9.5.2 Reset Timing. 3.13 Voltage Regulator The AX88772B contains an internal 3.3V to 1.8V low-dropout-voltage and low-standby-current voltage regulator. The internal regulator provides up to 150mA of driving current for the 1.8V core/analog power of the chip to satisfy the worst-case power consumption scenario. For more details on voltage regulator DC characteristic, please refer to 9.1.6 DC Characteristics of Voltage Regulator. 25 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 4 Serial EEPROM Memory Map EEPROM OFFSET 00H HIGH BYTE LOW BYTE 0x5A 0x15 01H Flag 02H Length of High-Speed Device Descriptor (bytes) EEPROM Offset of High-Speed Device Descriptor 03H 04H Length of High-Speed Configuration Descriptor (bytes) Node ID 1 EEPROM Offset of High-Speed Configuration Descriptor Node ID 0 05H Node ID 3 Node ID 2 06H Node ID 5 Node ID 4 07H Language ID High Byte Language ID Low Byte 08H Length of Manufacture String (bytes) EEPROM Offset of Manufacture String 09H Length of Product String (bytes) EEPROM Offset of Product String 0AH Length of Serial Number String (bytes) EEPROM Offset of Serial Number String 0BH Length of Configuration String (bytes) EEPROM Offset of Configuration String 0CH Length of Interface 0 String (bytes) EEPROM Offset of Interface 0 String 0DH Length of Interface 1/0 String (bytes) EEPROM Offset of Interface 1/0 String 0EH Length of Interface 1/1 String (bytes) EEPROM Offset of Interface 1/1 String 0FH EtherPhyMode PHY Register Offset 1 for [2:0] Interrupt Endpoint 10H 100 5’b0 PHY Register Offset 2 for Interrupt Endpoint 11H Max Packet Size High Byte[10:8] Secondary PHY_Type [7:5] and PHY_ID [4:0] Max Packet Size Low Byte[7:0] Primary PHY_Type [7:5] and PHY_ID [4:0] 12H Pause Frame Free Buffers High Water Mark Pause Frame Free Buffers Low Water Mark 13H Length of Full-Speed Device Descriptor (bytes) EEPROM Offset of Full-Speed Device Descriptor 14H 15H~17H Length of Full-Speed Configuration Descriptor (bytes) Reserved EEPROM Offset of Full-Speed Configuration Descriptor Reserved 18H Ethernet PHY Power Saving Configuration EEPROM Checksum Note: To store the endpoint 5 descriptors, 93C66 (512-byte) is recommended. Table 5 : Serial EEPROM Memory Map  The value of EEPROM Checksum field, EEPROM offset 0x18 (low byte) = (0xFF - SUM [EEPROM offset 07H ~ 0EH])  The value of Ethernet PHY Power Saving Configuration field (i.e. high byte of EEPROM offset 0x18) is equal to 2nd byte of Vendor Command 0x20. The AX88772B driver will read this field from high byte of EEPROM offset 0x18 and then writes it to 2nd byte of Vendor Command 0x20 at the end of driver initialization routine and during Suspend mode configuration. This field doesn’t affect AX88772B before the driver writes it to Vendor Command 0x20. Ethernet PHY Power Saving Configuration field Bit15 WOLLP Bit14 0 Bit13 IPFPS Bit12 AutoDetach Bit11 IPCOPSC Bit10 IPCOPS Bit9 IPPSL_1 26 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Bit8 IPPSL_0 AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 4.1 Detailed Description The following sections provide detailed descriptions for some of the fields in serial EEPROM memory map. For other fields not covered here, please refer to the AX88772B EEPROM User Guide for more details. 4.1.1 Word Count for Preload (00h) The number of words to be preloaded by the EEPROM loader = 15h. 4.1.2 Flag (01h) Bit 15 PME_IND Bit 7 TACE Bit 14 PME_TYP Bit 6 RDCE Bit 13 PME_POL Bit 5 EPOM Bit 12 PME_PIN Bit 4 BOTM_EN Bit 11 PHY_ISO Bit 3 1 Bit 10 1 Bit 2 RWU Bit 9 TDPE Bit 1 REF50_O Bit 8 CEM Bit 0 SP SP: Self-Power (for USB standard command Get Status) 1: Self power (default). 0: Bus power. REF50_O: RMII reference 50MHz clock direction 1: Sets AX88772B provides RMII reference 50MHz clock. 0: Sets AX88772B RMII reference clock source from external 50MHz clock source (default). RWU: Remote Wakeup support. 1: Indicate that this device supports Remote Wakeup (default). 0: Not support. BOTM_EN: Enable the bulk-type endpoint for BOTM 1: Enable (default). Please refer to 0 . 0: Disable. EPOM: Embedded PHY copper/fiber Operation Mode 1: Sets embedded PHY in copper mode (default). 0: Sets embedded PHY in fiber mode RDCE: RX Drop CRC Enable. 1: CRC byte is dropped on received MAC frame forwarding to host (default). 0: CRC byte is not dropped. TACE: TX Append CRC Enable. 1: CRC byte is generated and appended by the ASIC for every transmitted MAC frame (default). 0: CRC byte is not appended. CEM: Capture Effective Mode. 1: Capture effective mode enables (default). 0: Disabled. TDPE: Test Debug Port Enable. 1: Enable test debug port for chip debug purpose. 0: Disable test debug port and the chip operate in normal function mode (default). PHY_ISO: Set RMII bus to isolate mode when operating in PHY mode. 1: Set RMII bus to isolate mode (default). AX88772B can be in isolate mode when operating in PHY mode with Reverse-RMII. Following output pins are tri-stated in isolate mode. In Reverse-RMII mode: RXD [1:0] and CRSDV, RXER, except for REF50. 0: Set RMII bus to non-isolate mode. 27 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller PME_PIN: PME / GPIO_0 1: Set GPIO_0 pin as PME (default). 0: GPIO_0 pin is controlled by vendor command. PME_POL: PME pin active Polarity. 1: PME active high. 0: PME active low (default). PME_TYP: PME I/O Type. 1: PME output is a Push-Pull driver. 0: PME output to function as an open-drain buffer (default). PME_IND: PME indication. 1: A 1.363ms pulse active when detecting wake-up event. 0: A static signal active when detecting wake-up event (default). 4.1.3 Node ID (04~06h) The Node ID 0 to 5 bytes represent the MAC address of the device, for example, if MAC address = 01-23-45-67-89-ABh, then Node ID 0 = 01, Node ID 1 = 23, Node ID 2 = 45, Node ID 3 = 67, Node ID 4 = 89, and Node ID 5 = AB. Default values: Node ID {0, 1, 2, 3, 4, 5} = 0x000E_C687_7201. 4.1.4 PHY Register Offset for Interrupt Endpoint (0Fh) Bit 15 Bit 14 Bit 13 EtherPhyMode Bit 7 Bit 6 Bit 5 100 Bit 12 Bit 11 Bit 10 Bit 9 PHY Register Offset 1 Bit 3 Bit 2 Bit 1 PHY Register Offset 2 Bit 4 Bit 8 Bit 0 PHY Register Offset 1: Fill in PHY’s Register Offset of Primary PHY here. Upon each Interrupt Endpoint issued, its register value will be reported in byte# 5 and 6 of Interrupt Endpoint packet (default = 00101) PHY Register Offset 2: Fill in PHY’s Register Offset of Primary PHY here. Upon each Interrupt Endpoint issued, its register value will be reported in byte# 7 and 8 of Interrupt Endpoint packet (default = 00000) EtherPhyMode: as below table (default = 000), EtherPhyMode [2:0] 000 001 010 011 100 101 110 Function Auto-negotiation enable with all capabilities Auto-negotiation with 100BASE-TX FDX / HDX ability Auto-negotiation with 10BASE-TX FDX / HDX ability Reserved Manual selection of 100BASE-TX FDX Manual selection of 100BASE-TX HDX Manual selection of 10BASE-T FDX 111 Manual selection of 10BASE-T HDX Note: 1. EtherPhyMode is used to set the operation mode of embedded Ethernet PHY directly. For normal operation mode, set them to 000. 2. This value is latched into embedded Ethernet PHY right after it leaves reset. After that, software driver can still make change Ethernet PHY link ability through vendor command PHY Write Register to access embedded Ethernet PHY register. 28 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 4.1.5 Max Packet Size High/Low Byte (10h) Fill the maximum RX/TX MAC frame size supported by this ASIC. The number must be even number in terms of bytes and should be less than or equal to 2048 bytes (default = 0600h). 4.1.6 Primary/Secondary PHY_Type and PHY_ID (11h) The 3 bits PHY_Type field for both Primary and Secondary PHY is defined as follows, 000: 10/100M Ethernet PHY or 1M HomePNA PHY. 111: non-supported PHY. For example, the High Byte value of “E0h” means that secondary PHY is not supported. Default values: Primary {PHY_Type, PHY_ID} = 10h. Secondary {PHY_Type, PHY_ID} = E0h. Note that the PHY_ID of the embedded 10/100M Ethernet PHY is being assigned to “10h”. Secondary PHY_ID always defines The PHY_ID of External Media Interface (EMI) and Secondary PHY_TYPE is not used in that case. Please refer to Table 3 for more information. 4.1.7 Pause Frame Free Buffers High Water and Low Water Mark (12H) When operating in full-duplex mode, correct setting of this field is very important and can affect the overall packet receive throughput performance a great deal. The High Water Mark is the threshold to trigger sending Pause frame and the Low Water Mark is the threshold to stop sending Pause frame. Note that each free buffer count here represents 128 bytes of packet storage space in SRAM. These setting values are also used in half-duplex mode to activate Backpressure to send /stop jam signal. Total free buffer count = 128 Stop sending Pause frame when free buffer > Low Water Mark (default = 42h) Start sending Pause frame when free buffer < High Water Mark (default = 24h) Total free buffer count = 0 Figure 16 : Water level setting for flow control 4.1.8 Power-Up Steps After power-on reset, AX88772B will automatically perform the following steps to the Ethernet PHYs via MDC/MDIO lines (only take effect when Chip Operation Mode is in MAC mode with external PHY on RMII interface). 1. Write to PHY_ID of 00h with PHY register offset 00h to power down all PHYs attached to station management interface. 2. Write to Primary PHY_ID with PHY register offset 00h to power down Primary PHY. 3. Write to Secondary PHY_ID with PHY register offset 00h to power down Secondary PHY. Notice that enabling Default WOL Ready Mode (see 2.2 GPIO_1 Settings) will disable above power-up step (to prevent external Ethernet PHY on RMII interface from entering power-down mode), if external PHY is used. 29 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 4.2 Internal ROM Default Settings AX88772B supports some default settings inside chip hardware to enable it to communicate with USB host controller during enumeration when the AX88772B EEPROM is blank (prior to being programmed) or the value of EEPROM Checksum field is wrong. The default settings inside chip facilitate users to update the EEPROM content through a Windows PC during R&D validation process or program a blank EEPROM mounted on target system PCB during manufacturing process. Below table shows AX88772B’s internal default settings being used in the case of blank EEPROM or EEPROM with wrong checksum value on board. Each of the address offset contains 16-bit data from left to right representing the low-byte and high-byte, respectively. For example, in offset address 0x01, the ‘FD’ is low-byte data and the ‘1D’ is high-byte data. Offset Address 0x00 0x08 0x10 0x18 0x20 0x28 0x30 0x38 0x40 0x48 0x50 0x58 0x60 0x68 0x70 0x78 0x80 0x88~FF 0 8 15 00 6E 22 00 06 FF 08 12 01 03 01 FF FF 02 00 07 05 00 02 09 02 00 07 07 05 05 02 53 00 2E 00 41 00 FF FF 1 9 FD 1D 7F 12 10 E0 0E 03 00 02 09 02 00 07 07 05 05 02 FF FF 35 00 07 05 03 02 40 00 49 00 20 00 58 00 FF FF Table 6 2 A 20 12 19 0E 42 24 30 00 FF FF 35 00 07 05 03 02 00 02 00 08 01 01 81 03 40 00 00 DD 58 00 43 00 38 00 FF FF 3 B 29 35 44 04 47 12 30 00 00 40 01 01 81 03 00 02 00 FF 95 0B 04 E0 08 00 00 07 FF FF 20 00 6F 00 38 00 FF FF 4 C 00 0E 44 04 50 35 30 00 95 0B 04 E0 08 00 00 07 04 03 2B 77 02 09 A0 07 05 84 AA AA 45 00 72 00 37 00 FF FF 5 D C6 87 44 04 FF FF 30 00 2B 77 02 09 0B 07 05 84 30 00 01 00 04 00 05 82 02 40 BB BB 6C 00 70 00 37 00 FF FF 6 E 72 01 44 04 00 00 30 00 01 00 04 00 05 82 02 00 FF FF 01 02 00 05 02 40 00 00 22 03 65 00 2E 00 32 00 FF FF 7 F 09 04 80 05 FF FF 31 00 01 02 00 05 02 00 02 00 12 01 03 01 FF FF 00 00 07 05 41 00 63 00 12 03 42 00 FF FF : Internal ROM Memory Map Note: 1. The default high-byte data of offset 0x00 is 0x00. 2. The bulk out endpoint 5 enabled since bit 4 (BOTM_EN) of offset 01h is set to 1. 3. The default PID/VID is 772Bh/0B95h. 4. The default MAC address is 00-0E-C6-87-72-01, but the real MAC address is 00-00-00-00-00-00 that was auto-loaded from the AX88772B internal ROM default setting into the AX88772B Node ID register. User should manually assign a valid MAC address through the AX88772B driver parameter or by setting AX88772B Node ID register for normal network operation. 5. The default Manufacture string is “ASIX Elec. Corp.”. 6. The default Product string is “AX88772B”. 7. The default Serial Number is “000001”. 8. The default operation mode is set to Self-Power and Remote Wakeup enabled. 9. Max Power setting to 4mA. Expressed in 2mA (for example, 0x02 indicates for 4mA) 10. The default “AutoDetach” function is disabled and set to Cable Off Power Saving Level 0. 11. The default value of EEPROM Checksum field is 0xFF. 30 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 4.2.1 Internal ROM Description The internal ROM is a fixed value. User can’t modify it. Field Definition Vender ID (VID) Product ID (PID) Node ID Address Offset 0x24 0x4B 0x25 0x4C 0x04 ~0x06 Default Values Description 95 0B ASIX’s VID is 0x0B95 2B 77 The PID of AX88772B is 0x772B Node ID 0 ~ 5 00 0E C6 87 72 01 Power Mode/Remote 0x01 Wakeup/Copper or Fiber 0x2C Mode 0x53 FD 1D E0 (high-byte only) E0 (high-byte only) Max Power under 0x2D High Speed Mode Max Power under 0x54 Full Speed Mode Ethernet PHY Type/ID 0x11 02 (low-byte only) Manufacture String 0x6E~0x7E Product String 0x7F~0x87 22 03 45 00 43 00 12 03 37 00 Serial Number String 0x19~0x1F 0E 03 30 00 30 00 30 00 30 00 31 00 Ethernet PHY Power Saving Configuration 0x18 08 (high-byte only) 02 (low-byte only) 10 E0 Table 7 41 00 6C 00 6F 00 41 00 32 00 53 00 65 00 72 00 58 00 42 00 49 00 63 00 70 00 38 00 Self-Power mode, Enable the “remote wakeup” function, Copper Mode (Note 1) 4mA (Note 2) 4mA (Note 2) Primary PHY ID is 0x10 Secondary PHY is not supported 58 00 20 00 “ASIX Elec. Corp.” 2E 00 20 00 2E 00 38 00 37 00 “AX88772B” 30 00 “000001” Disable “AutoDetach” Set to Cable Off Power Saving Level 0 : Internal ROM Description 31 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Note 1: Power Mode/Remote Wakeup/PME Settings The offset 0x01 field of AX88772B EEPROM is used to configure the Power mode (i.e. Bus-power or Self-power), Remote Wakeup and PME functions. Please refer to datasheet Section 4 “Serial EEPROM Memory Map” for the detailed description of EEPROM offset 0x01. The high byte of AX88772B EEPROM offset 0x2C and 0x53 fields are used to configure the “bmAttributes” field of Standard Configuration Descriptor that will be reported to the USB host controller when the GET_DESCRIPTOR command with CONFIGURATION type is issued. Please refer to below table or “Section 9.6.3 Configuration” of Universal Serial Bus Spec Rev 2.0 for the detailed description of the “bmAttributes” field of Standard Configuration Descriptor. 32 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Note 2: Max Power Setting The low byte of AX88772B EEPROM offset 0x2D and 0x54 fields are used to configure the “bMaxPower” field of Standard Configuration Descriptor that will be reported to the USB host controller when the GET_DESCRIPTOR command with CONFIGURATION type is issued. Please refer to below table or “Section 9.6.3 Configuration” of Universal Serial Bus Spec Rev 2.0 for the detailed description of the “bMaxPower” field of Standard Configuration Descriptor. These fields are used to define the Maximum power consumption of the USB device drawn from the USB bus in this specific configuration when the device is fully operational. Expressed in 2mA units (for example, 0x7D indicates for 250mA). 4.2.2 External EEPROM Description User can assign the specific VID/PID, Serial Number, Manufacture String, Product String, etc. user defined fields by external EEPROM. Please refer to AX88772B EEPROM User Guide document for more details about how to configure AX88772B EEPROM content. 33 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 5 USB Configuration Structure 5.1 USB Configuration The AX88772B supports 1 Configuration only. 5.2 USB Interface The AX88772B supports 1 interface. 5.3 USB Endpoints The AX88772B supports following 4 or 6 endpoints:  Endpoint 0: Control endpoint. It is used for configuring the device. Please refer to USB Standard Commands (6.1) and USB Vendor Commands (6.2), etc.  Endpoint 1: Interrupt endpoint. It is used for reporting status. Please refer to Interrupt Endpoint (6.3).  Endpoint 2: Bulk In endpoint. It is used for receiving Ethernet Packet.  Endpoint 3: Bulk Out endpoint. It is used for transmitting Ethernet Packet.  Endpoint 4: Reserved.  Endpoint 5: Optional Bulk Out endpoint. It is used for transmitting BOTM frame(0). Note that BOTM_EN bit in EEPROM Flag [4] (4.1.2) is used to enable Endpoint 5. The optional endpoint 5 is serving to specific USB host controller which allows one USB pipe only. 34 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6 USB Commands There are three command groups for Endpoint 0 (Control Endpoint) in AX88772B:  The USB standard commands  The USB vendor commands  The USB Communication Class commands 6.1 USB Standard Commands      The Language ID is 0x0904 for English PPLL means buffer length CC means configuration number I I means Interface number AA means Device Address Setup Command 8006_00 01 00 00 LLPP Data Bytes PPLL bytes in Data stage Access Type Read 8006_0002 0000_LLPP PPLL bytes in Data stage Read Get Configuration Descriptor 8006_0003_0000_LLPP PPLL bytes in Data stage Read Get Supported Language ID 8006_0103_0904_LLPP PPLL bytes in Data stage Read Get Manufacture String 8006_0203_0904_LLPP PPLL bytes in Data stage Read Get Product String 8006_0303_0904_LLPP PPLL bytes in Data stage Read Get Serial Number String 8006_0403_0904_LLPP PPLL bytes in Data stage Read Get Configuration String 8006_0503_0904_LLPP PPLL bytes in Data stage Read Get Interface 0 String 8006_0603_0904_LLPP PPLL bytes in Data stage Read Get Interface 1/0 String 8006_0703_0904_LLPP PPLL bytes in Data stage Read Get Interface 1/1 String 8008_0000_0000_0100 1 bytes in Data stage Read Get Configuration 0009_CC00_0000_0000 No data in Data stage Write Set Configuration 810A_0000 _I I00_0100 1 bytes in Data stage Read Get Interface 010B_AS00_0000_0000 No data in Data stage Write Set Interface 0005_AA00_0000_0000 No data in Data stage Write Set Address Table 8 Description Get Device Descriptor : USB Standard Command Register Map 35 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2 USB Vendor Commands   AA, CC: The index of register or the content of register. BB, DD: The content of register CMD Setup Command No 02 C002_AA0B_0C00_0800 03 4003_AA0B_0C00_0800 06 4006_0000_0000_0000 Data Bytes Access Type 8 bytes in Data stage 8 bytes in Data stage No data in Data stage Read Write Write 2 bytes in Data stage 2 bytes in Data stage 1 bytes in Data stage No data in Data stage Read Write Read Write 2 bytes in Data stage No data in Data stage No data in Data stage No data in Data stage 2 bytes in Data stage No data in Data stage 3 bytes in Data stage No data in Data stage 6 bytes in Data stage 6 bytes in Data stage 8 bytes, MA0~MA7, in Data stage 16 4016_0000_0000_0800 8 bytes, MA0~MA7, in Data stage 17 4017_AA00_0000_0000 No data in Data stage 19 C019_0000_0000_0200 2 bytes in Data stage 1A C01A_0000_0000_0200 2 bytes in Data stage 1B 401B_AABB_0000_0000 No data in Data stage 1C C01C_0000_0000_0100 1 bytes in Data stage 1D 401D_AA00_0000_0000 No data in Data stage 1E C01E_0000_0000_0100 1 bytes in Data stage 1F 401F_AA00_0000_0000 No data in Data stage 20 4020_AABB_0000_0000 No data in Data stage 21 C021_0000_0000_0100 1 bytes in Data stage 22 4022_AA00_0000_0000 No data in Data stage 23 C023_AA00_0000_0400 4 bytes, Wake Up Register in Data stage 24 4024_AA00_0000_0400 4 bytes, Wake Up Register in Data stage 25 C025_0000_0000_0100 1 bytes in Data stage 26 4026_AA00_0000_0000 No data in Data stage 27 C027_0000_0000_0400 4 bytes in Data stage 28 4028_AABB_CCDD_0000 No data in Data stage 2B C02B_0000_0000_0400 4 bytes in Data stage 2C 402C_AABB_CCDD_0000 No data in Data stage 2D C02D_0000_0000_0400 4 bytes in Data stage 2E 402E_AABB_CCDD_0000 No data in Data stage 2F C02F_0000_0000_0400 4 bytes in Data stage 50 4050_AABB_CCDD_0000 No data in Data stage Read Write Write Write Read Write Read Write Read Write Read Rx/Tx/ID-SRAM Read Register Rx/Tx/ID-SRAM Write Register Software Station Management Control Register PHY Read Register PHY Write Register Station Management Status Register Hardware Station Management Control Register SROM Read Register SROM Write Register SROM Write Enable Register SROM Write Disable Register Rx Control Register Rx Control Register IPG/IPG1/IPG2 Register IPG/IPG1/IPG2 Register Node ID Register Node ID Register Multicast Filter Array Register Write Multicast Filter Array Register Write Read Read Write Read Write Read Write Write Read Write Read Test Register Ethernet/HomePNA PHY Address Register Medium Status Register Medium Mode Register Monitor Mode Status Register Monitor Mode Register GPIOs Status Register GPIOs Register Ethernet Power And Reset Control Register Software Interface Selection Status Register Software Interface Selection Register Wake-up Frame Array Register Write Wake-up Frame Array Register Read Write Read Write Read Write Read Write Read Write Jam Limit Count Register Jam Limit Count Register VLAN Control Register VLAN Control Register COE RX Control Register COE RX Control Register COE TX Control Register COE TX Control Register COE Checksum Error Count Register Fiber Power Save Timer Register 07 08 09 0A C007_AA00_CC00_0200 4008_AA00_CC00_0200 C009_0000_0000_0100 400A_0000_0000_0000 0B 0C 0D 0E 0F 10 11 12 13 14 15 C00B_AA00_0000_0200 400C_AA00_CCDD_0000 400D_0000_0000_0000 400E_0000_0000_0000 C00F_0000_0000_0200 4010_AABB_0000_0000 C011_0000_0000_0300 4012_AABB_CC00_0000 C013_0000_0000_0600 4014_0000_0000_0600 C015_0000_0000_0800 Description 36 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 70 7C 7D 7E 7F A1 A2 E1 F0 4070_AABB_CCDD_0000 C07C_0000_0000_0100 407D_AABB_CC00_0000 C07E_0000_0000_0100 407F_AABB_CC00_0000 C0A1_0000_0000_0400 40A2_AABB_CCDD_0000 C0E1_0000_0000_0200 40F0_AA00_0000_0000 No data in Data stage 1 bytes in Data stage No data in Data stage 1 bytes in Data stage No data in Data stage 4 bytes in Data stage No data in Data stage 2 bytes in Data stage No data in Data stage Table 9 Write Read Write Read Write Read Write Read Write LED_MUX Control Register VMFBIO Status Register VMFBIO Register VMFAIO Status Register VMFAIO Register Test packet generation Control Register Test packet generation Control Register Ethernet Power And Reset Control Register Global Reset Control Register : USB Vendor Command Register Map 37 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1 Detailed Register Description 6.2.1.1 Rx/Tx/ID-SRAM Read Register (02h, read only) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 AA [7:0] Reserved 0h B [3:0] C [3:0] DD [7:0] in Data stage EE [7:0] in Data stage FF [7:0] in Data stage GG [7:0] in Data stage HH [7:0] in Data stage II [7:0] in Data stage JJ [7:0] in Data stage KK [7:0] in Data stage {B [3:0], AA [7:0]}: The read address of RX or TX SRAM. C [1:0]: RAM selection. 00: indicates to read from RX SRAM. 01: indicates to read from TX SRAM. 10: indicates to read from ID-SRAM. C [3:2]: Reserved. {DD [7:0], EE [7:0], FF [7:0], GG [7:0], HH [7:0], II [7:0], JJ [7:0], KK [7:0]}: The 64-bits of data presented in Data stage are the data to be written to RX or TX SRAM. For the detailed ID-SRAM contrl, please refer to APPENDIX C. External EEPROM / Internal ROM / Internal ID-SRAM of Vender Descriptions selection. 6.2.1.2 Rx/Tx/ID-SRAM Write Register (03h, write only) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 AA [7:0] Reserved Reserved B [3:0] C [3:0] DD [7:0] in Data stage EE [7:0] in Data stage FF [7:0] in Data stage GG [7:0] in Data stage HH [7:0] in Data stage II [7:0] in Data stage JJ [7:0] in Data stage KK [7:0] in Data stage {B [3:0], AA [7:0]}: The write address of RX or TX SRAM. C [1:0]: RAM selection. 00: indicates to read from RX SRAM. 01: indicates to read from TX SRAM. 10: indicates to read from ID-SRAM. C [3:2]: Reserved. {KK [7:0], JJ [7:0], II [7:0], HH [7:0], GG [7:0], FF [7:0], EE [7:0], DD [7:0]}: The 64-bits of data presented in Data stage are the data to be written to RX or TX SRAM. For the detailed ID-SRAM contrl, please refer to APPENDIX C. External EEPROM / Internal ROM / Internal ID-SRAM of Vender Descriptions selection. 38 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.3 Software Station Management Control Register (06h, write only) When software needs to access to Ethernet PHY’s internal registers, it needs to first issue this command to request the ownership of Station Management Interface. Reading Station Management Status Register can check the ownership status of the interface. 6.2.1.4 PHY Read Register (07h, read only) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Bit2 Bit1 Bit0 Bit2 PPRMF Bit1 CABOFF Bit0 Host_EN AA [7:0] 00h CC [7:0] AA [4:0]: The PHY ID value. AA [7:5]: Reserved CC [4:0]: The register address of Ethernet PHY’s internal register. CC [7:5]: Reserved 6.2.1.5 PHY Write Register (08h, write only) Bit7 Bit6 Bit5 Bit4 Bit3 AA [7:0] 00h CC [7:0] AA [4:0]: The PHY ID value. AA [7:5]: Reserved CC [4:0]: The register address of Ethernet PHY’s internal register. CC [7:5]: Reserved 6.2.1.6 Station Management Status Register (09h, read only) Bit7 PM_mode Bit6 Bit5 Chip_Code Bit4 Bit3 Fiber_SD Host_EN: Host access Enable. Software can read this register to determine the current ownership of Station Management Interface. 1: Software is allowed to access Ethernet PHY’s internal registers via PHY Read Register or PHY Write Registers. 0: ASIC’s hardware owns the Station Management Interface and software’s access is ignored. CABOFF: Indicate the Ethernet cable was unplugged with internal Ethernet PHY. 1: Ethernet cable was unplugged. 0: Ethernet cable was plugged. PPRMF: Primary PHY remote fault indicates. Fiber_SD: Fiber PHY SD detected Chip_Code: Chip version code for software driver. 3’b010: Chip is AX88772B PM_mode: PHY or MAC mode 1: PHY mode 0: MAC mode 39 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.7 Hardware Station Management Control Register (0Ah, write only) When software is done accessing Station Management Interface, it needs to issue this command to release the ownership of the Interface back to ASIC’s hardware. After issuing this command, subsequent PHY Read Register or PHY Write Register from software will be ignored. Notice that Software should issue this command every time after it finishes accessing the Station Management Interface to release the ownership back to hardware to allow periodic Interrupt Endpoint to be able to access the Ethernet PHY’s registers via the Station Management Interface. 6.2.1.8 SROM Read Register (0Bh, read only) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Bit3 Bit2 Bit1 Bit0 AA [7:0] AA [7:0]: The read address of Serial EEPROM. 6.2.1.9 SROM Write Register (0Ch, write only) Bit7 Bit6 Bit5 Bit4 AA [7:0] 00h CC [7:0] DD [7:0] AA [7:0]: The write address of Serial EEROM. {DD [7:0], CC [7:0]}: The write data value of Serial EEROM 6.2.1.10 Write SROM Enable (0Dh, write only) User issues this command to enable write permission to Serial EEPROM from SROM Write Register. 6.2.1.11 Write SROM Disable (0Eh, write only) User issues this command to disable write permission to Serial EEPROM from SROM Write Register. 40 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.12 Rx Control Register (0Fh, read only and 10h, write only) Bit7 SO Bit15 Bit6 ARP Bit14 0 Bit5 AP Bit13 Bit4 AM Bit12 0 Bit3 AB Bit11 0 Bit2 0 Bit10 RH3M Bit1 AMALL Bit9 RH2M Bit0 PRO Bit8 RH1M AA [7:0] = {SO, ARP, AP, AM, AB, 0, AMALL, PRO} BB [7:0] = {3’b0, 0, 0, RH3M, RH2M, RH1M} PRO: PACKET_TYPE_PROMISCUOUS. 1: All frames received by the ASIC are forwarded up toward the host. 0: Disabled (default). AMALL: PACKET_TYPE_ALL_MULTICAST. 1: All multicast frames received by the ASIC are forwarded up toward the host, not just the frames whose scrambling result of DA matching with multicast address list provided in Multicast Filter Array Register. 0: Disabled. This only allows multicast frames whose scrambling result of DA field matching with multicast address list provided in Multicast Filter Array Register to be forwarded up toward the host (default). AB: PACKET_TYPE_BROADCAST. 1: All broadcast frames received by the ASIC are forwarded up toward the host (default). 0: Disabled. AM: PACKET_TYPE_MULTICAST. 1: All multicast frames whose scrambling result of DA matching with multicast address list are forwarded up to the host (default). 0: Disabled. ARP: Accept Runt Packet. 1: Accept Runt Packet. 0: Disabled, Reject Runt packet that byte count less then 64 bytes (default). AP: Accept Physical Address from Multicast Filter Array. 1: Allow unicast packets to be forwarded up toward host if the lookup of scrambling result of DA is found within multicast address list. 0: Disabled, that is, unicast packets filtering are done without regarding multicast address list (default). SO: Start Operation. 1: Ethernet MAC start operating. 0: Ethernet MAC stop operating (default). RH1M: RX Header 1 Format selection 0: RX Header Format type 0 Bit Bit Bit Bit 15 14 13 12 11 BMC Runt MiiEr CRCEr 0 31 30 29 28 27 Sequence Number [4:0] 10 9 8 26 25 24 9 8 25 24 1: RX Header Format type 1 (Default) 15 14 13 12 11 10 0 0 0 0 0 31 30 29 28 27 26 0xF 7 6 5 4 3 RX Packet Length [10:0] 23 22 21 20 19 Packet Length bar [10:0] 2 1 0 18 17 16 7 2 1 0 18 17 16 6 5 4 3 RX Packet Length [10:0] 23 22 21 20 19 Packet Length bar [10:0] 41 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller RH2M: RX Header Mode 2 1: Enable RX IP header aligned double word. 0: Disable RX IP header aligned double word (default). RH3M: RX Header Mode 3 (Checksum 2 bytes + dummy 2 bytes) 1: RX Header 3 Checksum appends. 0: Disable RX Header 3 Header appends (default). Bit [15:11]: Please always write 0 to these bits. Following is the truth table about unicast packet filtering condition. DA Matching Node ID PRO bit Broadcast or Multicast Unicast Packet Filtered by Register? Packet? Ethernet MAC? No 0 No Yes No 1 No No Yes (see Note below) 0 No No Note: DA Matching Node ID Register including following two cases: 1. Destination Address field of incoming packets matches with Node ID Register. 2. When AP (bit 5) is set to 1and the scrambling result of DA is found within multicast address list. Following is a truth table about broadcast packet filtering condition. PRO bit 0 0 1 AB bit 1 0 0/1 Broadcast Packet? Broadcast Packet Filtered by Ethernet MAC? Yes No Yes Yes Yes No 6.2.1.13 IPG/IPG1/IPG2 Control Register (11h, read only and 12h, write only) Bit7 Bit6 Bit5 Bit4 Bit3 IPG [7:0] IPG1 [7:0] IPG2 [7:0] Bit2 Bit1 AA [6:0] = IPG [6:0]. BB [6:0] = IPG1 [6:0]. CC [6:0] = IPG2 [6:0]. IPG [6:0]: Inter Packet Gap for back-to-back transfer on TX direction in MII mode (default = 15h). IPG1 [6:0]: IPG part1 value (default = 0Ch). IPG2 [6:0]: IPG part1 value + part2 value (default = 12h). AA [7]: Reserved. BB [7]: Reserved. CC [7]: Reserved. 42 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Bit0 AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.14 Node ID Register (13h, read only and 14h, write only) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 AA [7:0] BB [7:0] CC [7:0] DD [7:0] EE [7:0] FF [7:0] AA [7:0] = Node ID 0. BB [7:0] = Node ID 1. CC [7:0] = Node ID 2. DD [7:0] = Node ID 3. EE [7:0] = Node ID 4. FF [7:0] = Node ID 5. {FF [7:0], EE [7:0], DD [7:0], CC [7:0], BB [7:0], AA [7:0]} = Ethernet MAC address [47:0] of AX88772B. 6.2.1.15 Multicast Filter Array (15h, read only and 16h, write only) Bit7 Bit6 Bit5 Bit4 Bit3 MA 0 [7:0] MA 1 [7:0] MA 2 [7:0] MA 3 [7:0] MA 4 [7:0] MA 5 [7:0] MA 6 [7:0] MA 7 [7:0] Bit2 Bit1 Bit0 {MA7 [7:0], MA6 [7:0], MA5 [7:0], MA4 [7:0], MA3 [7:0], MA2 [7:0], MA1 [7:0], MA0 [7:0]} = the multicast address bit map for multicast frame filtering block. For example, see below Figure 15. DA 81 81 81 81 81 81 CRC32 {crc31, 30, 29, 28, 27, 26} Address [5:0] = 1Ah MAR [63:0] = 400_0000h Figure 17 : Multicast Filter Example As shown in below figure, the Multicast Filter Array (MFA) provides filtering of multicast addresses hashed through the CRC logic. All Destination Address field are fed through the 32 bits CRC generation logic. As the last bit of the Destination Address field enters the CRC, the 6 most significant bits of the CRC generator are latched. These 6 bits are then decoded by a 1 to 64 decoder to index a unique filter bit (FB0-63) in the Multicast Filter Array. If the filter bit selected is set, the multicast packet is accepted. The system designer should use a program to determine which filter bits to set in the multicast registers. All multicast filter bits that correspond to Multicast Filter Array Registers accepted by the 43 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller node are then set to one. To accept all multicast packets all of the registers are set to all ones. Note that received Pause Frames are always filtered by Ethernet MAC regardless of MFA setting. 48 bits DA field (DA [40] = 1 indicating a multicast DA) 32-bit CRC Generator CRC [31:26] 1 to 64-bit decoder Index to MFA Multicast Filter Array Figure 18 Selected bit: 0: Reject the multicast packet 1: Accept the multicast packet : Multicast Filter Array Hashing Algorithm Example: If the accepted multicast packet’s destination address Y is found to hash to the value 32 (0x20), then FB32 in MA4 should be initialized to “1”. This will allow the Ethernet MAC to accept any multicast packet with the destination address Y. Although the hashing algorithm does not guarantee perfect filtering of multicast address, it will perfectly filter up to 64 logical address filters if these addresses are chosen to map into unique locations in the multicast filter. Note: The LSB bit of received packet’s first byte being “1” signifies a Multicast Address. MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 D7 FB7 FB15 FB23 FB31 FB39 FB47 FB55 FB63 D6 FB6 FB14 FB22 FB30 FB38 FB46 FB54 FB62 D5 FB5 FB13 FB21 FB29 FB37 FB45 FB53 FB61 Figure 19 D4 FB4 FB12 FB20 FB28 FB36 FB44 FB52 FB60 D3 FB3 FB11 FB19 FB27 FB35 FB43 FB51 FB59 D2 FB2 FB10 FB18 FB26 FB34 FB42 FB50 FB58 D1 FB1 FB9 FB17 FB25 FB33 FB41 FB49 FB57 D0 FB0 FB8 FB16 FB24 FB32 FB40 FB48 FB56 : Multicast Filter Array Bit Mapping Following is the truth table about multicast packet filtering condition. PRO bit AMALL bit AM bit Pass Hashing Algorithm Multicast Packet Filtered by Ethernet MAC 0 0 0 0 Yes 0 0 0 1 Yes 0 0 1 0 Yes 0 0 1 1 No 0 1 0/1 0/1 No 1 0/1 0/1 0/1 No Note: Passing Hashing Algorithm means that the selected bit in MFA of CRC-32 result is set to “1”. 44 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.16 Test Register (17h, write only) Bit7 Bit6 Bit5 Bit4 MM [7:6] Bit3 Bit2 Bit1 Bit0 LDRND LDRND: To load Random number into MAC’s exponential back-off timer, the user writes a “1” to enable the ASIC to load a small random number into MAC’s back-off timer to shorten the back-off duration in each retry after collision. This register is used for test purpose. Default value = 0. MM [7:6]: Reserved. 6.2.1.17 Ethernet / HomePNA PHY Address Register (19h, read only) Bit7 Bit6 SecPhyType [2:0] PriPhyType [2:0] Bit5 Bit4 Bit3 Bit2 SecPhyID [4:0] PriPhyID [4:0] Bit1 Bit0 SecPhyType, SecPhyID: The Secondary PHY address loaded from serial EEPROM’s offset address 11h. (The default value is E0h.) PriPhyType, PriPhyID: The Primarily PHY address loaded from serial EEPROM’s offset address 11h. (The default value is 10h.) 6.2.1.18 Medium Status Register (1Ah, read only) and Medium Mode Register (1Bh, write only) Bit7 PF Bit15 0 Bit6 0 Bit14 0 Bit5 TFC Bit13 0 Bit4 RFC Bit12 SM Bit3 0 Bit11 SBP Bit2 1 Bit10 Reserved Bit1 FD Bit9 PS Bit0 0 Bit8 RE AA [7:0] = {PF, 0, TFC, RFC, 0, 1, FD, 0}. BB [7:0] = {3’b0, SM, SBP, Reserved, PS, RE}. FD: Full Duplex mode 1: Full Duplex mode (default). 0: Half Duplex mode. RFC: RX Flow Control enables. 1: Enable receiving of pause frame on RX direction during full duplex mode (default). 0: Disabled. TFC: TX Flow Control enables. 1: Enable transmitting pause frame on TX direction during full duplex mode (default). 0: Disabled. PF: Check only “length/type” field for Pause Frame. 1: Enable. Pause frames are identified only based on L/T filed. 0: Disabled. Pause frames are identified based on both DA and L/T fields (default). RE: Receive Enable. 1: Enable RX path of the ASIC. 0: Disabled (default). PS: Port Speed in MII mode 1: 100 Mbps (default). 0: 10 Mbps. SBP: Stop Backpressure. 1: When TFC bit = 1, setting this bit enables backpressure on TX direction “continuously” during RX buffer full condition in half duplex mode. 0: When TFC bit = 1, setting this bit enable backpressure on TX direction “intermittently” during RX buffer full condition in half duplex mode (default). 45 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller SM: Super Mac support. 1: Enable Super Mac to shorten exponential back-off time during transmission retrying. 0: Disabled (default). 6.2.1.19 Monitor Mode Status Register (1Ch, read only) Bit7 PME_IND Bit6 PME_TYPE Bit5 PME_POL Bit4 US Bit3 RWWF Bit2 RWMP Bit1 RWLC Bit0 0 Bit2 RWMP Bit1 RWLC Bit0 0 RWLC: Remote Wakeup trigger by Ethernet Link Change. 1: Enabled (default). 0: Disabled. RWMP: Remote Wakeup trigger by Magic Packet. 1: Enabled (default). 0: Disabled. RWWF: Remote Wakeup trigger by Wake Up Frame. 1: Enabled. 0: Disabled (default). US: USB Speed. 1: High speed mode. 0: FS speed mode. PME_POL: PME Polarity. 1: PME active high. 0: PME active Low (default). PME_TYP: PME I/O Type. 1: PME output is a Push-Pull driver. 0: PME output to function as an open-drain buffer. PME_IND: PME indication. 1: A 1.363ms pulse active when detect wake-up event. 0: A static signal active when detect wake-up event (default). 6.2.1.20 Monitor Mode Register (1Dh, write only) Bit7 Bit6 Reserved Bit5 Bit4 Bit3 RWWF RWLC: Remote Wakeup trigger by Ethernet Link Change. 1: Enable (default). 0: Disable. RWMP: Remote Wakeup trigger by Magic Packet. 1: Enable (default). 0: Disable. RWWF: Remote Wakeup trigger by Wake Up Frame. 1: Enable 0: Disable (default). 46 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.21 GPIO Status Register (1Eh, read only) Bit7 Bit6 00 Bit5 GPI_2 Bit4 GPO_2_EN Bit3 GPI_1 Bit2 GPO_1_EN Bit1 GPI_0 Bit0 GPO_0_EN GPO_0_EN: Current level of pin GPIO_0’s output enable. GPI_0: Input level on GPIO_0 pin when GPIO_0 is as an input pin. GPO_1_EN: Current level of pin GPIO_1’s output enable. GPI_1: Input level on GPIO_1 pin when GPIO_1 is as an input pin. GPO_2_EN: Current level of pin GPIO_2’s output enable. GPI_2: Input level on GPIO_2 pin when GPIO_2 is as an input pin. 6.2.1.22 GPIO Register (1Fh, write only) Bit7 RSE Bit6 Reserved Bit5 GPO_2 Bit4 GPO2EN Bit3 GPO_1 Bit2 GPO1EN Bit1 GPO_0 GPO0EN: Pin GPIO_0 Output Enable. 1: Output is enabled (meaning GPIO_0 is used as an output pin). 0: Output is tri-stated (meaning GPIO_0 is used as an input pin) (default). GPO_0: Pin GPIO_0 Output Value. GPO1EN: Pin GPIO_1 Output Enable. 1: Output is enabled (meaning GPIO_1 is used as an output pin). 0: Output is tri-stated (meaning GPIO_1 is used as an input pin) (default). GPO_1: Pin GPIO_1 Output Value. 0: (default). GPO2EN: Pin GPIO_2 Output Enable. 1: Output is enabled (meaning GPIO_2 is used as an output pin). 0: Output is tri-stated (meaning GPIO_2 is used as an input pin) (default). GPO_2: Pin GPIO_2 Output Value. 0: (default). RSE: Reload Serial EEPROM. 1: Enable. 0: Disabled (default) 47 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Bit0 GPO0EN AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.23 Ethernet PHY Power and Reset Control Register (20h, write only) Bit7 IPOSC Bit15 WOLLP Bit6 IPPD Bit14 0 Bit5 IPRL Bit13 IPFPS Bit4 BZ Bit12 AutoDetach Bit3 0 Bit11 IPCOPSC Bit2 BZ_TYP Bit10 IPCOPS Bit1 RT Bit9 IPPSL_1 Bit0 RR Bit8 IPPSL_0 RR: Clear frame length error for Bulk In. 1: set high to clear state. 0: set low to exit clear state (default). RT: Clear frame length error for Bulk Out. 1: set high to enter clear state. 0: set low to exit clear state (default). BZ_TYP: The type of BZ bit. Define BZ bit whether it can auto-clear itself. 1: Disable that BZ auto-clears itself when it force hardware return a Zero-length packet (default). 0: Auto-clears BZ when it forces hardware return a Zero-length packet. BZ: Force Bulk In to return a Zero-length packet. 1: Software can force Bulk In to return a zero-length USB packet. 0: Normal operation mode (default). IPRL: Internal PHY Reset control. This bit acts as reset signal of internal Ethernet PHY. AX88772B software driver can write it to control the internal Ethernet PHY. For the power-up process to PHY, please refer to APPENDIX B. Ethernet PHY Power and Reset Control. 1: Internal Ethernet PHY is in operating state. 0: Internal Ethernet PHY in reset state (default). IPPD: Internal Ethernet PHY Power Down control. AX88772B software driver can write it to control the internal Ethernet PHY. For the power-up process to PHY, please refer to APPENDIX B. Ethernet PHY Power and Reset Control. 1: Internal Ethernet PHY power down enable (default). There are two level of power down mode. When IPPD is set to high and the IPOSC is set to low, the internal Ethernet PHY will turn off all clocks and enter deep power down mode. When IPPD is set to high and the IPOSC is also set to high, the internal Ethernet PHY will turn off most of clocks but not crystal oscillator 25MHz. 0: Internal Ethernet PHY is in operating mode. IPOSC: Internal Ethernet PHY 25MHz crystal oscillator control. AX88772B software driver can write it to control the internal Ethernet PHY. 1: Crystal still alive if IPPD is high (default). The IPOSC must be set high at less 500ns before IPPD going to high. 0: Crystal will turn off if IPPD is high. It will disable USB function when 25MHz crystal turned off.. IPCOPS: Internal PHY Cable off power saving. 1: Internal PHY Cable off power saving active. 0: Normal operation (default). IPPSL_0: Ethernet PHY Power Saving Level bit-0 IPPSL_1: Ethernet PHY Power Saving Level bit-1 00: Cable Off Power Saving Level 0 (default). 01: Cable Off Power Saving Level 1. 10: Reserved 11: Reserved IPCOPSC: Internal Ethernet PHY Cable Off Power Saving Control Selecter 1: Control by Hardware handle only (default). 0: Control by Software and Switch to Hardware handle if USB suspendded. AutoDetach: Detach from USB host when Ethernet cable unplug 1: Enable 0: Disable, Keep Device attached When Ethernet cable unplug (default). IPFPS: Internal PHY Fiber mode Power saving 1: Enable Internal PHY Fiber mode Power Saving. Internal PHY will active Fiber Power saving when SD signal state at low level more then 5ms, it will leave Fiber power saving righ away when SD signal stated. Please reverence Vendor Command Fiber Power Save Timer Register for details. 0: Disable Internal PHY Fiber mode Power saving 48 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller WOLLP: WOL Low Power (Force PHY 10BASE) 1: Force Internal Ethernet PHY into 10BASE after entering Suspend mode. This bit only effect if both PHYs are in auto-negotiation mode with 10/100 capacities. 0: Non-force Internal Ethernet PHY (Default). 6.2.1.24 Software Interface Selection Status Register (21h, read only) and Software Interface Selection Register (22h, write only) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Ether_mode:RO Reserved Bit1 ASEL Bit0 PSEL PSEL: PHY Select, when ASEL = 0 (manually select the PHY to operate) 1: Select embedded 10/100M Ethernet PHY. 0: Select external one by setting MFA_2 and MFA_3 pins. (default) ASEL: Auto Select or Manual Select the operation mode. 1: Automatic selection is based on link status of embedded 10/100M Ethernet PHY. If the embedded PHY is in link-off state, the operation mode is determined by MFA_2 and MFA_3 pins. 0: Manual selection between the internal 10/100M Ethernet PHY and the external one (default). Ether_mode [1:0]: Operational mode. Write to define the operation mode of External Media Interface 00: (invalid) 01: (invalid) 10: (invalid) 11: (invalid) Read the current data path selection of Ethernet block or operation mode of External Media Interface. 00: Selected embedded Ethernet PHY 01: Selected RMII interface 10: Reserved 11: Selected Reverse-RMII 49 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.25 Wake-up Frame Array Register (23h, read only and 24h, write only) Bit7 Bit6 Bit5 Bit4 Bit3 AA [7:0] WUD0 [7:0] in Data Stage WUD1 [7:0] in Data Stage WUD2 [7:0] in Data Stage WUD3 [7:0] in Data Stage Bit2 Bit1 Bit0 AA [7:0]: The index (from 0x0 to 0x11) of Wake-Up Frame Array Register as shown in below table. {WUD3 [7:0], WUD2 [7:0], WUD1 [7:0], WUD0 [7:0]} = 32-bits wide register as defined in below table. AA 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 Byte3 (WUD3) Byte2 (WUD2) Byte1 (WUD1) Byte0 (WUD0) Byte Mask 0 Byte Mask 1 Byte Mask 2 Byte Mask 3 Byte Mask 4 Byte Mask 5 Byte Mask 6 Byte Mask 7 Wakeup Frame 1 CRC Wakeup Frame 0 CRC Wakeup Frame 3 CRC Wakeup Frame 2 CRC Wakeup Frame 5 CRC Wakeup Frame 4 CRC Wakeup Frame 7 CRC Wakeup Frame 6 CRC Offset 3 Offset 2 Offset 1 Offset 0 Offset 7 Offset 6 Offset 5 Offset 4 Last Byte 3 Last Byte 2 Last Byte 1 Last Byte 0 Last Byte 7 Last Byte 6 Last Byte 5 Last Byte 4 Command Command Command Command Command Command Command Command 7 6 5 4 3 2 1 0 11 Broadcast match command Reply TX page 3 Reserved Mask (Always Wakeup zero) Timer Reply TX page 2 12 13 Reply TX page 1 Reply TX page 0 Reply TX page 7 Reply TX page 6 Reply TX page 5 Reply TX page 4 14 Partial checksum 1 Table 10 DA Match Command Cascade Command Partial checksum 0 : Wake-up Frame Array Register (WUD3~0) Structure Definition 50 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller There are eight independent sets of wakeup frame filter supported through the above Byte Mask 0~7. Each wakeup frame filter set consists of Byte Mask, Wakeup Frame CRC, Offset, Last Byte and Command registers. Also, if a more complex pattern of Wakeup Frame is needed, user can choose to cascade two filter sets into one (or up to eight filter sets into one) through Cascade Command register and define a longer pattern for Wakeup Frame matching. Below is detailed register definition. Byte Mask 0~7: Each set has 32 bits. The byte mask defines which bytes in the incoming frame will be examined to determine whether or not this is a wake-up frame. Wakeup Frame 0~7 CRC: Each has 16 bits. Based on desired wakeup frame patterns, software should calculate CRC-16 and set it here. The value is used to compare with the CRC-16 calculated on the incoming frame on the bytes defined by Byte Mask 0~7. When matched and the Last Byte 0~7 is also matched, then the frame is considered as a valid wakeup frame. CRC-16 Polynomials = X^16 + X^15 + X^2 + 1. If wakeup frame filters are cascaded, the Wakeup Frame CRC must be cumulatively calculated. The last CRC value is used for verification. Offset 0~7: Each has 8 bits. This defines the offset of the first byte in the incoming frame from which the CRC-16 is calculated for the wakeup frame recognition. Each offset value represents two bytes in the frame. For example: The offset value of 0 is the first byte of the incoming frame’s destination address. The offset value of 1 is the 3rd byte of the incoming frame, etc. Last Byte 0~7: Each has 8 bits. This 1-byte pattern is used to compare the last masked byte in the incoming frame. The last masked byte is the byte of the last bit mask being 1 in Byte Mask 0~7. A valid wakeup frame shall have match condition on both Wakeup Frame 0~7 CRC and Last Byte 0~7. If wake-up frame filters are cascaded, the Last Byte for the last cascaded wake-up frame filter is used to verify correctness. Command 0~7: Each has 4 bits. Bit 0: Individual Byte Mask enable for Byte Mask 0~7. 1: Enable. 0: Disable. Bit 1: Destination address (DA) match enable. 1: The DA field of received packet will be compared with the MAC address of AX88772B. When receiving frame with DA matching Node ID register and the wakeup frame filter is also matched, then the packet is considered as valid wakeup frame. 0: When receiving frame with any DA value and the wakeup frame filter is matched, then the packet is considered as valid wakeup frame. Bit 2: Multicast address match enable. 1: The DA field of received packet will be examined if it is a multicast frame and compared with the Multicast Filter Array. When receiving frame is a multicast frame, meets Multicast Filter Array, and also matches the wakeup frame filter, the packet is considered as valid wakeup frame. 0: When receiving frame with any DA value matches the wakeup frame filter, the packet is considered as valid wakeup frame. Bit 3: Auto reply enable when suspended. 1: Enable individual auto reply function when suspended. 0: Disable. Cascade Command: the Bit 0~6 of Wake-up Frame Array Register 0x11 Bit0: 1: Byte Mask 1 and Byte Mask 0 are cascaded to become one wake-up frame filter that allows defining up to 64 masked bytes. 0: Byte Mask 1 and Byte Mask 0 are two independent wake-up frame filters for up to 32 masked bytes each. Bit1: 51 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 1: Byte Mask 2 and Byte Mask 1 are cascaded to become one wake-up frame filter that allows defining up to 64 masked bytes. 0: Byte Mask 2 and Byte Mask 1 are two independent wake-up frame filters for up to 32 masked bytes each. Bit2: 1: Byte Mask 3 and Byte Mask 2 are cascaded to become one wake-up frame filter that allows defining up to 64 masked bytes. 0: Byte Mask 3 and Byte Mask 2 are two independent wake-up frame filters for up to 32 masked bytes each. Bit3: 1: Byte Mask 4 and Byte Mask 3 are cascaded to become one wake-up frame filter that allows defining up to 64 masked bytes. 0: Byte Mask 4 and Byte Mask 3 are two independent wake-up frame filters for up to 32 masked bytes each. Bit4: 1: Byte Mask 5 and Byte Mask 4 are cascaded to become one wake-up frame filter that allows defining up to 64 masked bytes. 0: Byte Mask 5 and Byte Mask 4 are two independent wake-up frame filters for up to 32 masked bytes each. Bit5: 1: Byte Mask 6 and Byte Mask 5 are cascaded to become one wake-up frame filter that allows defining up to 64 masked bytes. 0: Byte Mask 6 and Byte Mask 5 are two independent wake-up frame filters for up to 32 masked bytes each Bit6: 1: Byte Mask 7 and Byte Mask 6 are cascaded to become one wake-up frame filter that allows defining up to 64 masked bytes. 0: Byte Mask 7 and Byte Mask 6 are two independent wake-up frame filters for up to 32 masked bytes each Note: (1) If both Bit 0 and Bit 1 set ‘1’, Byte Mask 2 and Byte Mask 1 and Byte Mask 0 are cascaded to become one wake-up frame filter that allows defining up to 96 masked bytes. (2) If both Bit 1 and Bit 2 set ‘1’, Byte Mask 3 and Byte Mask 2 and Byte Mask 1 are cascaded to become one wake-up frame filter that allows defining up to 96 masked bytes. (3) If Bit 3 ~ Bit 0 set ‘1’, Byte Mask 3 ~Byte Mask 0 are cascaded to become one wake-up frame filter that allows defining up to 128 masked bytes. (4) If Bit 6 ~ Bit 0 set ‘1’, Byte Mask 7 ~Byte Mask 0 are cascaded to become one wake-up frame filter that allows defining up to 256 masked bytes maximum. Bit7: Reserved. DA Match Command: the Bit 8~9 of Wake-up Frame Array Register 0x11 Bit8: 1: DA match only enable. When receiving frame has DA matching Node ID register, then the packet is considered as valid wakeup frame. 0: DA match only disable. Bit9: 1: Multicast address match only enable. When receiving frame is a multicast frame and meets Multicast Filter Array, the packet is considered as valid wakeup frame. 0: Multicast address match only disable. Bit15~10: Reserved. Mask Wakeup Timer: Mask wakeup event trigger to USB host timer. (Due to some system took a long time to enter suspend state) Bit [3:0]: 28s, 24s, 20s, 16s, 12s, 8s, 4s, 0s Bit [3:0] Mask Time Unit 0x0 0 Sec 0x1 4 Sec 0x2 8 Sec 0x3 12 Sec 0x4 16 Sec 0x5 20 Sec 0x6 24 Sec 0x7 28 Sec Broadcast match command: Bit [7:0]: Broadcast match enable for byte mask 7~0. 52 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Reply TX Page point: Bit 4~0: The power management offload auto reply packet was stored in different page of TX buffer SRAM. Bit 6~5: Reply type. 00: Orginal packet in TX buffer. 01: Neighbor advertisement (partial checksum 0). 10: Neighbor advertisement (partial checksum 1). 11: ARP. Partial checksum: Calculated partial checksum of neighbor advertisement packet. 6.2.1.26 Jam Limit Count Register (25h, read only and 26h write only) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Jam_Limit [5:0] 0 Bit1 Bit0 Jam_Limit [5:0]: This is used for flow-control in half-duplex mode, which is based on force collision mechanisms to backpressure transmitting network node. During the force collision backpressure process, the Ethernet MAC will continue counting total collision count. When it has reached the Jam_Limit setting, the Ethernet MAC will stop backpressure to avoid Ethernet HUB from being partitioned (default = 3Fh) due to excessive collision on network link. Bit 7, 6: Please always write 0 to these bits. 6.2.1.27 VLAN Control Register (27h, read only) and (28h, write only) Bit7 Bit6 Bit5 Reserved VSO Bit4 Bit3 VID1 [7:0] VFE VID2 [7:0] Reserved Bit2 Bit1 Bit0 VID1 [11:8] VID2 [11:8] AA [7:0] = {VID1 [7:0]}. BB [7:0] = {Reserved, VSO, VFE, VID1 [11:8]}. CC [7:0] = {VID2 [7:0]}. DD [7:0] = {Reserved, VID2 [11:8]}. VID1 [11:0]: First VLAN ID for filter. VFE: VLAN filter enable 1: Enable VLAN filter. The VLAN ID field (12 bits) received 802.1q tagged packets, as in the Figure 26 below, which will be used to compare with VID1 and VID2 setting. If it matches either VID1 or VID2, or its value is equal to all zeros, the received 802.1q tagged packets will be forwarded to the USB Host. Meanwhile, the VSO bit determines whether the VLAN Tag bytes (4 bytes) are stripped off or not during forwarding to the USB Host. Also, if the incoming packets contain no VLAN Tag bytes, they will be forwarded to the USB Host by default. If there is no match between the received 802.1q tagged packets and VID1 and VID2, the packets will be discarded. Please see below Table 12. Received packet Untagged Tagged VID1, VID2 Zero Forwarded VID=Zero Forwarded VID= Not zero Discarded Not zero Forwarded Forwarded Match: Forwarded No Match: Discarded Table 11 : VID1, VID2 setting to filter received packet 53 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 0: Disable VLAN filter. The received packets with or without 802.1q Tag bytes will always be forwarded to the USB Host (default). VSO: VLAN Strip off 1: Strip off VLAN Tag (4 bytes) from the incoming packet. 0: Preserve VLAN Tag in the incoming packet (default). VID2 [11:0]: Second VLAN ID for filter. Note that VID1 and VID2 function as two independent VLAN ID filters. Note that to send the packet with VLANID Tag bytes; the software should append VLAN Tag bytes in the transmitted packets. 802.1Q VLAN tagging 7 Bytes Layer 2 Preamble 1 Byte SFD 6 Bytes Destination Address 6 Bytes Source Address 2B 2B 8100 TCI Frame (64-1518 Bytes) VLAN (64-1522 Bytes) Figure 20 2B 46-1500 Bytes L/T 4 Bytes Data 3 bits 1 bit 12 bits Priority CFI VLAN ID Pad FCS : 802.1q VLAN Packet Format 6.2.1.28 COE RX Control Register (CRXCR, 2Bh for read and 2Ch for write) Bit Name Reset Value 7 RXICV6 0 Bit Name 0 RXIPCE 1 RXIPVE 2 RXV6VE 3 RXTCPE 4 RXUDPE 5 RXICMP 6 RXIGMP 7 RXICV6 6 RXIGMP 0 5 RXICMP 0 4 RXUDPE 0 3 RXTCPE 0 2 RXV6VE 0 1 RXIPVE 0 Access Description R/W Enable IPv4 checksum check. 1: Enables IP packet checksum check. 0: Disable IP packet checksum check R/W Enable IP version check. 1: Enables IP packet version field check. 0: Disables IP packet version field check. R/W Enable IPv6 version check. 1: Enables IPv6 packet version field check. 0: Disables IPv6 packet version field check. R/W Enable TCP packet checksum check in RX path. 1: Enables the TCP packet checksum check function. 0: Disables the TCP packet checksum check function. R/W Enable UDP packet checksum check in RX path. 1: Enables the UDP packet checksum check function. 0: Disables the UDP packet checksum check function. R/W Enable ICMP packet checksum check in RX path. 1: Enables the ICMP packet checksum check function. 0: Disables the ICMP packet checksum check function. R/W Enable IGMP packet checksum check in RX path. 1: Enables the IGMP packet checksum check function. 0: Disables the IGMP packet checksum check function. R/W Enable ICMPv6 packet checksum check in RX path. 1: Enables the ICMPv6 packet checksum check function. 0: Disables the ICMPv6 packet checksum check function. AA [7:0] = {RXICV6, RXIGMP, RXICMP, RXUDPE, RXTCPE, RXV6VE, RXIPVE, RXIPCE} 54 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. 0 RXIPCE 0 AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7 FOPC 0 Bit Name Reset Value Bit Name 0 RXTCPV6 1 RXUDPV6 2 RXICMV6 3 RXIGMV6 4 RXICV6V6 6:5 Reserved 7 FOPC 6 5 Reserved 0 0 4 RXICV6V6 0 3 RXIGMV6 0 2 RXICMV6 0 1 RXUDPV6 0 RXTCPV6 Access Description R/W Enable TCP packet checksum check in RX path for IPv6 packet. 1: Enables the TCP packet checksum check function for IPv6 packet. 0: Disables the TCP packet checksum check function for IPv6 packet. R/W Enable UDP packet checksum check in RX path for IPv6 packet. 1: Enables the UDP packet checksum check function for IPv6 packet. 0: Disables the UDP packet checksum check function for IPv6 packet. R/W Enable ICMP packet checksum check in RX path for IPv6 packet. 1: Enables the ICMP packet checksum check function for IPv6 packet. 0: Disables the ICMP packet checksum check function for IPv6 packet. R/W Enable IGMP packet checksum check in RX path for IPv6 packet. 1: Enables the IGMP packet checksum check function for IPv6 packet. 0: Disables the IGMP packet checksum check function for IPv6 packet. R/W Enable ICMPv6 packet checksum check in RX path for IPv6 packet. 1: Enables the ICMPv6 packet checksum check function for IPv6 packet. 0: Disables the ICMPv6 packet checksum check function for IPv6 packet. R/W Reserved R/W Enable Fixed Offset Partial Checksum mode. 1: Enable Fixed Offset Partial Checksum mode. If enabled this bit, COE RX part will calculate partial checksum from fixed offset 14 (bytes) to the end of packet (CRC is NOT included). Other bits should be disabled when FOPC turned ON. 0: Disable FOPC mode BB [7:0] = {Reserved, RXICV6V6, RXIGMV6, RXICMV6, RXUDPV6, RXTCPV6} Bit Name Reset Value 7 ICV6DP 0 Bit Name 0 IPCEDP 1 IPVEDP 2 V6VEDP 3 TCPEDP 4 UDPEDP 6 IGMPDP 0 5 ICMPDP 0 4 UDPEDP 0 3 TCPEDP 0 2 V6VEDP 0 1 IPVEDP 0 0 IPCEDP 0 Access Description R/W Drop received packet with IP checksum error. 1: Drop received IP packets with IP checksum error. 0: Do not drop received IP packets with IP checksum error, but indicate checksum error in RX header. R/W Drop received packet with IP version error. 1: Drop received IP packets with IP version error. 0: Do not drop received IP packets with IP version error, but indicate version error in RX header. R/W Drop received packet with IPv6 version error. 1: Drop received IPv6 packets with IPv6 version error. 0: Do not drop received IPv6 packets with IPv6 version error, but indicate version error in RX header. R/W Drop received packet with TCP checksum error. 1: Drop received TCP packets with TCP checksum error. 0: Do not drop received TCP packets with TCP checksum error, but indicate checksum error in RX header. R/W Drop received packet with UDP checksum error. 1: Drop received UDP packets with UDP checksum error. 0: Do not drop received UDP packets with UDP checksum error, but indicate checksum error in RX header. 55 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 5 ICMPDP 6 IGMPDP 7 ICV6DP R/W Drop received packet with ICMP checksum error. 1: Drop received ICMP packets with ICMP checksum error. 0: Do not drop received ICMP packets with ICMP checksum error, but indicate checksum error in RX header. R/W Drop received packet with IGMP checksum error. 1: Drop received IGMP packets with IGMP checksum error. 0: Do not drop received IGMP packets with IGMP checksum error, but indicate checksum error in RX header. R/W Drop received packet with ICMPv6 checksum error. 1: Drop received ICMPv6 packets with ICMPv6 checksum error. 0: Do not drop received ICMPv6 packets with ICMPv6 checksum error, but indicate checksum error in RX header. CC [7:0] = {ICV6DP, IGMPDP, ICMPDP, UDPEDP, TCPEDP, V6VEDP, IPVEDP, IPCEDP} Bit Name Reset Value 7 Reserved 0 Bit Name 0 RX64TE 1 RXPPPE 2 TCP6DP 3 UDP6DP 4 IC6DP 5 IG6DP 6 ICV66DP 7 Reserved 6 ICV66DP 0 5 IG6DP 0 4 IC6DP 0 3 UDP6DP 0 2 TCP6DP 0 1 RXPPPE 0 0 RX64TE 0 Access Description R/W Support IPv6 in IPv4 tunnel mode. 1: COE will check L4 checksum in a IPv6 in IPv4 tunnel packet. 0: COE will not check L4 checksum in a IPv6 in IPv4 tunnel packet. R/W L2 parser support PPPoE encapsulated packet in RX path. 1: COE support PPPoE encapsulated packet in RX path. 0: COE do not support PPPoE encapsulated packet in RX path. R/W Drop received packet with TCP checksum error for IPv6 packet. 1: Drop received TCP packets with TCP checksum error for IPv6 packet. 0: Do not drop received TCP packets with TCP checksum error, but indicate checksum error in RX header for IPv6 packet. R/W Drop received packet with UDP checksum error for IPv6 packet. 1: Drop received UDP packets with UDCP checksum error for IPv6 packet. 0: Do not drop received UDP packets with UDP checksum error, but indicate checksum error in RX header for IPv6 packet. R/W Drop received packet with ICMP checksum error for IPv6 packet. 1: Drop received ICMP packets with ICMP checksum error for IPv6 packet. 0: Do not drop received ICMP packets with ICMP checksum error, but indicate checksum error in RX header for IPv6 packet. R/W Drop received packet with IGMP checksum error for IPv6 packet. 1: Drop received IGMP packets with IGMP checksum error for IPv6 packet. 0: Do not drop received IGMP packets with IGMP checksum error, but indicate checksum error in RX header for IPv6 packet. R/W Drop received packet with ICMPv6 checksum error for IPv6 packet. 1: Drop received ICMPv6P packets with ICMPv6 checksum error for IPv6 packet. 0: Do not drop received ICMPv6 packets with ICMPv6 checksum error, but indicate checksum error in RX header for IPv6 packet. R/W Alaways write zero. DD [7:0] = {Reserved, ICV66DP, IG6DP, IC6DP, UDP6DP, TCP6DP, RXPPPE, RX64TE} 56 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.29 COE TX Control Register (CTXCR, 2Dh for read and 2Eh for write) 7 Bit Name Reset Value 6 5 TXICV6 0 Reserved 0 Bit Name 0 TXIP 1 TXTCP 2 TXUDP 3 TXICMP 4 TXIGMP 5 TXICV6 7:6 Reserved 4 TXIGMP 0 3 TXICMP 0 2 TXUDP 0 1 TXTCP 0 0 TXIP 0 Access Description R/W Enable IPv4 checksum insertion function. 1: Enables IPv4 packet checksum insertion function. 0: Disables IPv4 packet checksum insertion function. R/W Enable TCP checksum insertion function. 1: Enables TCP packet checksum insertion function. 0: Disables TCP packet checksum insertion function. R/W Enable UDP checksum insertion function. 1: Enables UDP packet checksum insertion function. 0: Disables UDP packet checksum insertion function. R/W Enable ICMP checksum insertion function. 1: Enables ICMP packet checksum insertion function. 0: Disables ICMP packet checksum insertion function. R/W Enable IGMP checksum insertion function. 1: Enables IGMP packet checksum insertion function. 0: Disables IGMP packet checksum insertion function. R/W Enable ICMPv6 checksum insertion function. 1: Enables ICMPv6 packet checksum insertion function. 0: Disables ICMPv6 packet checksum insertion function. R/W Reserved AA [7:0] = {Reserved, TXICV6, TXIGMP, TXICMP, TXUDP, TXTCP, TXIPV6, TXIP} Bit Name Reset Value 7 6 Reserved 000 Bit Name 2 TXTCPV6 3 TXUDPv6 4 TXICMV6 5 TXIGMV6 6 TXICV6V6 7 Reserved 5 4 TXICV6V6 0 3 TXIGMV6 0 2 TXICMV6 0 1 TXUDPV6 0 0 TXTCPV6 0 Access Description R/W Enable TCP checksum insertion function for IPv6 packet. 1: Enables TCP packet checksum insertion function for IPv6 packet. 0: Disables TCP packet checksum insertion function for IPv6 packet. R/W Enable UDP checksum insertion function for IPv6 packet. 1: Enables UDP packet checksum insertion function for IPv6 packet. 0: Disables UDP packet checksum insertion function for IPv6 packet. R/W Enable ICMP checksum insertion function for IPv6 packet. 1: Enables ICMP packet checksum insertion function for IPv6 packet. 0: Disables ICMP packet checksum insertion function for IPv6 packet. R/W Enable IGMP checksum insertion function for IPv6 packet. 1: Enables IGMP packet checksum insertion function for IPv6 packet. 0: Disables IGMP packet checksum insertion function for IPv6 packet. R/W Enable ICMPv6 checksum insertion function for IPv6 packet. 1: Enables ICMPv6 packet checksum insertion function for IPv6 packet. 0: Disables ICMPv6 packet checksum insertion function for IPv6 packet. R/W Reserved BB [7:0] = {Reserved, TXICV6V6, TXIGMV6, TXICMV6, TXUDPV6, TXTCPV6} 57 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7 Bit Name Reset Value 5 4 3 2 Reserved 6’b0 Bit Name 0 TX64TE 1 6 TXPPPE 2:7 Reserved 1 TXPPPE 0 0 TX64TE 0 Access Description R/W Support IPv6 in IPv4 tunnel mode. 1: COE will insert L4 checksum in a IPv6 in IPv4 tunnel packet. 0: COE will not insert L4 checksum in a IPv6 in IPv4 tunnel packet. R/W L2 parser support PPPoE encapsulated packet in TX path. 1: COE do not support PPPoE encapsulated packet in TX path. 0: COE support PPPoE encapsulated packet in TX path. R/W Reserved BB [7:0] = {Reserved, TXPPPE, TX64TE} CC [7:0] = Reserved DD [7:0] = Reserved 6.2.1.30 COE Checksum Error Count Register (CEDR, 2Fh for read) 7 6 ICMPCEDC 00 Bit Name Reset Value Bit Name 1:0 IPCEDC 3:2 TCPCEDC 5:4 UDPCEDC 7:6 ICMPCEDC 5 4 UDPCEDC 00 3 2 TCPCEDC 00 1 0 IPCEDC 00 Access Description R Layer 3 IPv4 checksum error detect counter. If IPv4 checksum error detected, this counter will add 1. This counter cleared after read. R Layer 4 TCP checksum error detect counter. If TCP checksum error detected, this counter will add 1. This counter cleared after read. R Layer 4 UDP checksum error detect counter. If UDP checksum error detected, this counter will add 1. This counter cleared after read. R Layer 4 ICMP checksum error detect counter. If ICMP checksum error detected, this counter will add 1. This counter cleared after read. AA [7:0] = {ICMPCEDC, UDPCEDC, TCPCEDC, IPCEDC} Bit Name Reset Value 7 5 4 Reserved 4’b0 Bit Name 1:0 IGMPCEDC 3:2 ICV6CEDC 7:4 Reserved 6 3 2 ICV6CEDC 00 1 0 IGMPCEDC 00 Access Description R Layer 4 IGMP checksum error detect counter. If IGMP checksum error detected, this counter will add 1. This counter cleared after read. R Layer 4 ICMPv6 checksum error detect counter. If ICMPv6 checksum error detected, this counter will add 1. This counter cleared after read. R/W Reserved BB [7:0] = {Reserved, ICV6CEDC, IGMPCEDC} 58 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7 Bit Name Reset Value Bit Name 7:0 L2 CRC error counter 6 5 4 3 L2 CRC error counter 0x00 2 1 0 Access Description R Layer 2 CRC error counter. Indicate the CRC error count. This counter cleared after read. CC [7:0] = L2 CRC error counter DD [7:0] = Reserved 6.2.1.31 Fiber Power Saving Timer Register (50h, write only) 7 Bit Name Reset Value 6 5 4 3 2 1 0 FART [1:0] 0 0x01 AA = {6’b0, FART [1:0]} FART: Fiber PHY Auto Resume Time 00: 320ms 01: 640ms 10: 1280ms 11: 2560ms 6.2.1.32 LED_MUX control Register (70h, write only) Bit Name 7 6 5 4 3 Sel_LED0 Sel_LED1 Sel_LED2 Sel_LED3 2 1 0 Select MFA_3 ~ MFA_0 LEDs output AA [7:0] = MFA_0 output function by Sel_LED0 is defined as following [7] Link [6] Link & Active [5] Speed [4] Duplex [3] Duplex & collision [2] Collision [1] Fiber Remote Fault [0] TX Active BB [7:0] = MFA_1 output function by Sel_LED1 defined as following [7] Link [6] Link & Active [5] Speed [4] Duplex [3] Duplex & collision [2] Collision [1] RX Active [0] TX Active 59 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Reset Value 0x08 0x20 0x40 0x01 AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller CC [7:0] = MFA_2 output function by Sel_LED2 defined as following [7] Link [6] Link & Active [5] Speed [4] Duplex [3] Duplex & collision [2] Collision [1] RX Active [0] TX Active DD [7:0] = MFA_3 output function by Sel_LED3 defined as following [7] X [6] X [5] X [4] X [3] Fiber Signal Detected [2] Active [1] USB Sspeed [0] USB Speed & Active 6.2.1.33 VMFBIO Status Register (7Ch, read only) Bit Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Reset Value MFBI_7 MFBI _6 MFBI _5 MFBI _4 MFBI_3 MFBI _2 MFBI _1 MFBI _0 0x00 Bit1 Bit0 Reset Value Vemdor command controls MFB0 ~ MFB3. 6.2.1.34 VMFBIO Register (7Dh, write only) Bit Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 MFBO _7 MFBOEN7 0 MFBO _6 MFBOEN6 0 MFBO _5 MFBOEN5 0 MFBO_4 MFBOEN4 0 MFBO _3 MFBOEN3 0 MFBO _2 MFBOEN2 0 MFBO _1 MFBO_0 MFBOEN1 MFBOEN0 0 MFBGS Vemdor command controls MFB0 ~ MFB7. MFBGS: MFB0~7 driving strength 0: 4mA 1: 8mA 60 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. 0x00 0x00 0x00 AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.35 VMFAIO Status Register (7Eh, read only) Bit Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Reset Value 0 0 0 0 MFAI_3 MFAI_2 MFAI_1 MFAI_0 0x00 Bit1 Bit0 Reset Value Vendor command control MFA_0 ~ MFA_3 6.2.1.36 VMFAIO Register (7Fh, write only) Bit Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Name 0 MFA_EN 0 0 0 0 0 0 0 0 0 0 MFAO_3 MFAOEN3 0 MFAO_2 MFAOEN2 0 MFAO_1 MFAO_0 MFAOEN1 MFAOEN0 0 MFAGS Vendor command control MFA_0 ~ MFA_3 VMFAGS: MFAIO driving strength 0: 4mA 1: 8mA MFA_EN Sel_LED3 MFAO_3 Sel_LED2 MFAO_2 Sel_LED1 0 MFA_3 1 0 MFA_2 1 0 MFA_1 MFAO_1 Sel_LED0 1 0 MFA_0 MFAO_0 1 61 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. 0x00 0x00 0x01 AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.2.1.37 Test Packet Generation Control Register (A1h, read only) and (A2h, write only) 7 Bit Name 6 5 4’b0 Reset Value 4 3 2 1 TPinterval TPrandom Data pattern or random seed Test packet length low Test packet length high 0x00 0 TPfix The transmit test packets without padding CRC 4 bytes. AA [7:0] = {TPinterval, TPrandom, TPfix} TPinterval: test packet inter-frame gape TPrandom: random data packet TPfix: fix data packet BB [7:0] = Data pattern or random seed. The BB[3:0] is high-nibble of data pattern and BB[7:4] is low-nibble. CC [7:0] = Test packet length low DD [7:0] = {4’b0, Test packet length high} Total test packet length = {Test packet length high, Test packet length low} Note: To enable Test Packet Generation function, please set TPrandom =’1’ or Tpfix =’1’. 6.2.1.38 Ethernet Power And Reset Control Register (E1h, read only) Please refer to Vendor command 20h for the detail data format. 6.2.1.39 Global Reset Control Register (F0h, write only) Bit Name Reset Value Bit7 0 Bit6 0 Bit5 0 Bit4 0 Bit3 0 Bit2 0 0x00 AA [7:0] = {7’b0, GR} GR: CHIP Global Reset 1: Gloobal reset active and will clear by itself 0: Normal Operation 62 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Bit1 0 Bit0 GR AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.3 Interrupt Endpoint The Interrupt Endpoint contains 8 bytes of data and its frame format is defined as: A1AA_BBCC_DDEE_FFGG. Where A1 byte in byte 1: A1 is a fixed value. Where AA byte in byte 2: Bit7 Bit6 0 0 Bit5 0 Bit4 0 Bit3 0 Bit2 0 Bit1 Fiber_SD Bit0 PPRMF Bit3 MDINF [8] Bit2 FLE Bit1 SPLS Bit0 PPLS PPRMF: Primary PHY remote fault indicates. Fiber_SD: Fiber PHY SD detected Where BB byte in byte 3: Bit7 Bit6 CABOFF 0 Bit5 0 Bit4 IEPSP PPLS: Primary PHY Link State. The link status of internal PHY in MAC/PHY mode 1: Link is up. 0: Link is down. SPLS: Secondary PHY Link State. It is the link status of external PHY connected with RMII. In MAC mode, it is the link status of external PHY. In PHY mode, the link status equals the inverse value of MDINF [8] in PM_Control register. 1: Link is up. 0: Link is down. FLE: Bulk Out Ethernet Frame Length Error. 1: Proprietary Length field has parity error during Bulk Out transaction. 0: Proprietary Length field has no parity error during Bulk Out transaction. MDINF [8]: Media Information bit [8] (default value = 1). This bit is the same as the PHY mode register, PM_Control (10h), bit [8] value written by external Ethernet MAC device when AX88772B operates in PHY mode. User can use PM_Control register bit [8] to send some message to AX88772B software driver through Interrupt Endpoint. The typical usage is to indicate to the AX88772B software driver that the external Ethernet MAC has finished initialization and is ready to send and receive packets with AX88772B, by writing ’0’ to PM_Control bit [8]. IEPSP: Internal Embedded PHY speed 1: 100BASE 0: 10BASE CABOFF: Indicate the Ethernet cable was unplugged with internal Ethernet PHY. 1: Ethernet cable was unplugged. 0: Ethernet cable was plugged. Where CC byte in byte 4: Bit7 Bit6 Bit5 Bit4 Bit3 MDINF [7:0] Bit2 Bit1 Bit0 MDINF [7:0]: Media Information bit [7:0] (default = 00h). This byte is the same as the PHY mode register, PM_Control (10h), bit [7:0] value written by external Ethernet MAC device when AX88772B operates in PHY mode. User can use PM_Control register bit [7:0] to send some messages to AX88772B software driver through Interrupt Endpoint. DDEE byte in byte 5 and 6: Primary PHY’s register value, whose offset is given in High byte of EEPROMoffset 0Fh. FFGG byte in byte 7 and 8: Primary PHY’s register value, whose offset is given in Low byte of EEPROMoffset 0Fh. 63 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 6.4 Bulk-Out Timer and Monitor (BOTM) BOTM controller (Bulk-Out Timer and Monitor) Bit7 Byte0 Byte1 Byte2 Byte3 Byte4 Bit6 Bit5 0 0 Bit4 Bit3 BOTMSignature [7:0] BOTMSignature [15:8] Bit2 Bit1 Bit0 R T RMDQ Bulk-Out delay Timer Threshold [7:0] Bulk-Out delay Timer Threshold [14:8] BOTMSignature [15:0] = {0xAAB8} T: USB Bulk-Out delay timer Threshold 1: Enable 0: Disable R: Check MAC to receive frame status 1: Enable 0: Disable RMDQ: Release Manual De-Queue after Bulk-Out delay Timer Threshold timeout. 1: Enable 0: Disable Bulk-Out delay Timer Threshold [14:0], Per Unit is 1us. 64 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7 Embedded Ethernet PHY Register Description In MAC mode (operating with or without internal Ethernet PHY), the embedded Ethernet PHY registers can always be accessed indirectly through the USB vendor commands, PHY Read Register and PHY Write Register. In PHY mode, the embedded Ethernet PHY registers can still be accessed indirectly through the USB vendor commands. Address 00h 01h 02h 03h 04h 05h 06h 07h 08h-0Fh Register Name BMCR BMSR PHYIDR1 PHYIDR2 ANAR ANLPAR ANER Reserved IEEE reserved Default Value 3100h 7809h 003Bh 1881h 01E1h 0000h 0000h 0000h 0000h Table 12 Description Basic mode control register, basic register. Basic mode status register, basic register. PHY identifier register 1, extended register. PHY identifier register 2, extended register. Auto negotiation advertisement register, extended register. Auto negotiation link partner ability register, extended register. Auto negotiation expansion register, extended register. Reserved and currently not supported. IEEE 802.3u reserved. : Embedded Ethernet PHY Register Map 7.1 PHY Register Detailed Description The following abbreviations apply to following sections for detailed register description. Reset value: 1: Bit set to logic one 0: Bit set to logic zero X: No set value Pin#: Value latched from pin # at reset time Access type: RO: Read only RW: Read or write Attribute: SC: Self-clearing PS: Value is permanently set LL: Latch low LH: Latch high 65 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7.1.1 Basic Mode Control Register (BMCR) Address 00h Bit Bit Name 15 Reset Default 0, RW / SC Description Reset: 1: Software reset 0: Normal operation 14 Loopback 0, RW Loopback: 1: Loopback enabled 0: Normal operation 13 Speed selection 1, RW Speed selection: 1: 100 Mb/s 0: 10 Mb/s This bit must set to 1 while bit 12 (Auto-negotiation enable) is set to 1. 12 Auto-negotiation 1, RW Auto-negotiation enable: enable 1: Auto-negotiation enabled. Bit 8 of this register is ignored and Bit 13 of this register must set to 1. 0: Auto-negotiation disabled. Bits 8 and 13 of this register determine the link speed and mode. 11 Power down 0, RW Power down: 1: Power down 0: Normal operation 10 Isolate (PHYAD = Isolate: 00000), RW 1: Isolate 0: Normal operation 9 Restart 0, RW / SC Restart auto-negotiation: auto-negotiation 1: Restart auto-negotiation 0: Normal operation 8 Duplex mode 1, RW Duplex mode: 1: Full duplex operation 0: Normal operation 7 Collision test 0, RW Collision test: 1: Collision test enabled 0: Normal operation 6:0 Reserved X, RO Reserved: Write as 0, read as “don’t care”. 66 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7.1.2 Basic Mode Status Register (BMSR) Address 01h Bit 15 Bit Name 100BASE-T4 Default Description 0, RO / PS 100BASE-T4 capable: 0: This PHY is not able to perform in 100BASE-T4 mode. 14 100BASE-TX full 1, RO / PS 100BASE-TX full-duplex capable: duplex 1: This PHY is able to perform in 100BASE-TX full-duplex mode. 13 100BASE-TX half 1, RO / PS 100BASE-TX half-duplex capable: duplex 1: This PHY is able to perform in 100BASE-TX half-duplex mode. 12 10BASE-T full 1, RO / PS 10BASE-T full-duplex capable: duplex 1: This PHY is able to perform in 10BASE-T full-duplex mode. 11 10BASE-T half 1, RO / PS 10BASE-T half-duplex capable: duplex 1: This PHY is able to perform in 10BASE-T half-duplex mode. 10:7 Reserved 0, RO Reserved. Write as 0, read as “don’t care”. 6 MF preamble 0, RO / PS Management frame preamble suppression: suppression 0: This PHY will not accept management frames with preamble suppressed. 5 Auto-negotiation 0, RO Auto-negotiation completion: complete 1: Auto-negotiation process completed 0: Auto-negotiation process not completed 4 Remote fault (Not 0, RO / LH Remote fault: supported) 1: Remote fault condition detected (cleared on read or by a chip reset) 0: No remote fault condition detected 3 Auto-negotiation 1, RO / PS Auto configuration ability: ability 1: This PHY is able to perform auto-negotiation. 2 Link status 0, RO / LL Link status: 1: Valid link established (100Mb/s or 10Mb/s operation) 0: Link not established 1 Jabber detect 0, RO / LH Jabber detection: 1: Jabber condition detected 0: No Jabber condition detected 0 Extended capability 1, RO / PS Extended capability: 1: Extended register capable 0: Basic register capable only 67 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7.1.3 PHY Identifier Register 1 (PHYIDR1) Address 02h Bit Bit Name 15:0 OUI_MSB Default 0x003B, RO / PS Description OUI most significant bits: Bits 3 to 18 of the OUI are mapped to bits 15 to 0 of this register respectively. The most significant two bits of the OUI are ignored. 7.1.4 PHY Identifier Register 2 (PHYIDR2) Address 03h Bit Bit Name 15:10 OUI_LSB 9:4 3:0 Default 00_0110, RO / PS VNDR_MDL MDL_REV 00_1000, RO / PS 0001, RO / PS Description OUI least significant bits: Bits 19 to 24 of the OUI are mapped to bits 15 to 10 of this register respectively. Vendor model number. Model revision number. 7.1.5 Auto Negotiation Advertisement Register (ANAR) Address 04h Bit Bit Name Default 15 NP 0, RO / PS 14 ACK 0, RO 13 RF 0, RW 12:11 Reserved 10 Pause X, RW 0, RW 9 T4 0, RO/PS 8 TX_FD 1, RW 7 TX_HD 1, RW 6 10_FD 1, RW 5 10_HD 1, RW 4:0 Selector 0_0001, RW Description Next page indication: 0: No next page available. The PHY does not support the next page function. Acknowledgement: 1: Link partner ability data reception acknowledged 0: Not acknowledged Remote fault: 1: Fault condition detected and advertised 0: No fault detected Reserved. Write as 0, read as “don’t care”. Pause: 1: Pause operation enabled for full-duplex links 0: Pause operation not enabled 100BASE-T4 support: 0: 100BASE-T4 not supported 100BASE-TX full-duplex support: 1: 100BASE-TX full-duplex supported by this device 0: 100BASE-TX full-duplex not supported by this device 100BASE-TX half-duplex support: 1: 100BASE-TX half-duplex supported by this device 0: 100BASE-TX half-duplex not supported by this device 10BASE-T full-duplex support: 1: 10BASE-T full-duplex supported by this PHY 0: 10BASE-T full-duplex not supported by this PHY 10BASE-T half-duplex support: 1: 10BASE-T half-duplex supported by this PHY 0: 10BASE-T half-duplex not supported by this PHY Protocol selection bits: These bits contain the binary encoded protocol selector supported by this PHY. [0 0001] indicates that this PHY supports IEEE 802.3u CSMA/CD. 68 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 7.1.6 Auto Negotiation Link Partner Ability Register (ANLPAR) Address 05h Bit Bit Name 15 NP Default 0, RO 14 ACK 0, RO 13 RF 0, RO 12:11 Reserved 10 Pause X, RO 0, RO 9 T4 0, RO 8 TX_FD 0, RO 7 TX_HD 0, RO 6 10_FD 0, RO 5 10_HD 0, RO 4:0 Selector 0_0000, RO Description Next page indication: 1: Link partner next page enabled 0: Link partner not next page enabled Acknowledgement: 1: Link partner ability for reception of data word acknowledged 0: Not acknowledged Remote fault: 1: Remote fault indicated by link partner 0: No remote fault indicated by link partner Reserved. Write as 0, read as “don’t care”. Pause: 1: Pause operation supported by link partner 0: Pause operation not supported by link partner 100BASE-T4 support: 1: 100BASE-T4 supported by link partner 0: 100BASE-T4 not supported by link partner 100BASE-TX full-duplex support: 1: 100BASE-TX full-duplex supported by link partner 0: 100BASE-TX full-duplex not supported by link partner 100BASE-TX half-duplex support: 1: 100BASE-TX half-duplex supported by link partner 0: 100BASE-TX half-duplex not supported by link partner 10BASE-T full-duplex support: 1: 10BASE-T full-duplex supported by link partner 0: 10BASE-T full-duplex not supported by link partner 10BASE-T half-duplex support: 1: 10BASE-T half-duplex supported by link partner 0: 10BASE-T half-duplex not supported by link partner Protocol selection bits: Link partner’s binary encoded protocol selector. 7.1.7 Auto Negotiation Expansion Register (ANER) Address 06h Bit Bit Name 15:5 Reserved 4 PDF Default 0, RO 0, RO / LH 3 LP_NP_AB 0, RO 2 NP_AB 0, RO / PS 1 Page_RX 0, RO / LH 0 LP_AN_AB 0, RO Description Reserved. Write as 0, read as “don’t care”. Parallel detection fault: 1: Fault detected via the parallel detection function 0: No fault detected Link partner next page enable: 1: Link partner next page enabled 0: Link partner not next page enabled PHY next page enable: 0: PHY not next page enabled New page reception: 1: New page received 0: New page not received Link partner auto-negotiation enable: 1: Auto-negotiation supported by link partner 69 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 8 Station Management Registers in PHY Mode There are 8 registers in the station management interface of the AX88772B for the external Ethernet MAC device to access when AX88772B operates in PHY mode. The access protocol and timing format is the same as the standard management frame structure defined in the IEEE 802.3u spec. Therefore, the station management interface of AX88772B also needs a unique PHY ID to be able to receive management frame. In this case, the 5-bit PHY_ID of AX88772B station management interface is defined in the EEPROM offset 11h (Secondary PHY_ID [4:0]) and (Table 3 PHY_ID definition table). Reverse-RMII AX88772B in PHY mode RMII MDC Ethernet MAC of Embedded MCU MDIO READ WRITE PRE 1…….1 1…….1 ST 01 01 OP 10 01 Figure 21 Address Register Name 00h 01h 02h 03h 04h 05h 06h 10h PM_BMCR PM_BMSR PM_PHYIDR1 PM_PHYIDR2 PM_ANAR PM_ANLPAR PM_ANER PM_Control Table 13 Management frame fields PHY_ID REGAD TA AAAAA RRRRR Z0 AAAAA RRRRR 10 DATA DDDDDDDDDDDDDDDD DDDDDDDDDDDDDDDD IDLE Z Z : Station Management Frame for PHY Mode Default Description Value 3100h 4029h 003Bh 1861h 0501h 4501h 0003h 0100h (8.1.1) Basic mode control register, basic register. (8.1.2) Basic mode status register, basic register. (8.1.3) PHY identifier register 1, extended register. (8.1.4) PHY identifier register 2, extended register. (8.1.5) Auto negotiation advertisement register, extended register. (8.1.6) Auto negotiation link partner ability register, extended register. (8.1.7) Auto negotiation expansion register, extended register. (8.1.8) A customized STA register. : Station Management Register Map in PHY Mode 70 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 8.1 PHY Mode Detailed Register Description 8.1.1 PHY Mode Basic Mode Control Register (PM_BMCR) Address 00h Bit Bit Name 15 Reset 14 13 12 11 10 9 8 7 6:0 Default Description 0, RO Reset: 1: Software reset 0: Normal operation, this bit is fixed to 0. Loopback 0, RW Loopback: 1: Loopback enabled. The AX88772B will loopback data from TXD [1:0] input back to RXD [1:0] in Reverse-RMII mode. 0: Normal operation Speed selection 1, RO Speed selection: 1: 100 Mb/s, this bit is fixed to 1. 0: 10 Mb/s Auto-negotiation 1, RO Auto-negotiation enable: enable 1: Auto-negotiation enabled, this bit is fixed to 1. 0: Auto-negotiation disabled. Power down 0, RW Power down: 1: Power down. If in Reverse-RMII mode, the CRSDV, RXD 1:0] outputs will be kept low and no toggling. The REFCLK_O keeps 50MHz clock output. 0: Normal operation Isolate PHY_ISO, Isolate: (default value is loaded from EEPROM Flag [11]) RW 1: Isolate. The below AX88772B outputs pin will become tri-state. If in Reverse-RMII: RXD [1:0], CRSDV, except for REFCLK_O. 0: Normal operation Restart 0, RO Restart auto-negotiation: auto-negotiation 1: Restart auto-negotiation 0: Normal operation, this bit is fixed to 0. Duplex mode 1, RO Duplex mode: 1: Full duplex operation, this bit is fixed to 1. 0: Normal operation. Collision test 0, RO Collision test: 1: Collision test enabled 0: Normal operation, this bit is fixed to 0. Reserved 0, RO Reserved. Write as 0, read as “don’t care”. 71 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 8.1.2 PHY Mode Basic Mode Status Register (PM_BMSR) Address 01h Bit Bit Name 15 100BASE-T4 14 100BASE-TX full duplex 13 100BASE-TX half duplex 12 10BASE-T full duplex 11 10BASE-T half duplex 10:7 Reserved 6 MF preamble suppression 5 Auto-negotiation complete 4 Remote fault (Not supported) 3 2 Auto-negotiation ability Link status 1 Jabber detect 0 Extended capability Default Description 0, RO 100BASE-T4 capable: 0: This PHY is not able to perform in 100BASE-T4 mode. 1, RO 100BASE-TX full-duplex capable: 1: This PHY is able to perform in 100BASE-TX full-duplex mode. 0, RO 100BASE-TX half-duplex capable: 0: This PHY is not able to perform in 100BASE-TX half-duplex mode. 0, RO 10BASE-T full-duplex capable: 0: This PHY is not able to perform in 10BASE-T full-duplex mode. 0, RO 10BASE-T half-duplex capable: 0: This PHY is not able to perform in 10BASE-T half-duplex mode. 0, RO Reserved. Write as 0, read as “don’t care”. 0, RO Management frame preamble suppression: 0: This PHY will not accept management frames with preamble suppressed. 1, RO Auto-negotiation completion: 1: Auto-negotiation process completed 0: Auto-negotiation process not completed 0, RO Remote fault: 1: Remote fault condition detected (cleared on read or by a chip reset) 0: No remote fault condition detected 1, RO Auto configuration ability: 1: This PHY is able to perform auto-negotiation. 0, RO Link status: 1: Valid link established (indicate that AX88772B software initialization is finished and not in USB suspend mode) 0: Link not established (indicate that AX88772B software initialization is not finished or in USB suspend mode) 0, RO Jabber detection: 1: Jabber condition detected 0: No Jabber condition detected 1, RO Extended capability: 1: Extended register capable 0: Basic register capable only 72 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 8.1.3 PHY Mode PHY Identifier Register 1 (PM_PHYIDR1) Address 02h Bit Bit Name Default 15:0 OUI_MSB 0x003B, RO Description OUI most significant bits: Bits 3 to 18 of the OUI are mapped to bits 15 to 0 of this register respectively. The most significant two bits of the OUI are ignored. 8.1.4 PHY Mode PHY Identifier Register 2 (PM_PHYIDR2) Address 03h Bit Bit Name 15:10 OUI_LSB Default 00_0110, RO 9:4 VNDR_MDL 00_0110, RO 3:0 MDL_REV 0001, RO Description OUI least significant bits: Bits 19 to 24 of the OUI are mapped to bits 15 to 10 of this register respectively. Vendor model number. Model revision number. 8.1.5 PHY Mode Auto Negotiation Advertisement Register (PM_ANAR) Address 04h Bit Bit Name Default Description 15 NP 0, RO Next page indication: 0: No next page available. The PHY does not support the next page function. 14 ACK 0, RO Acknowledgement: 1: Link partner ability data reception acknowledged 0: Not acknowledged 13 RF 0, RO Remote fault: 1: Fault condition detected and advertised 0: No fault detected 12:11 Reserved 0, RO Reserved. Write as 0, read as “don’t care”. 10 Pause 1, RO Pause: 1: Pause operation enabled for full-duplex links 0: Pause operation not enabled 9 T4 0, RO 100BASE-T4 support: 0: 100BASE-T4 not supported 8 TX_FD 1, RO 100BASE-TX full-duplex support: 1: 100BASE-TX full-duplex supported by this device 0: 100BASE-TX full-duplex not supported by this device 7 TX_HD 0, RO 100BASE-TX half-duplex support: 1: 100BASE-TX half-duplex supported by this device 0: 100BASE-TX half-duplex not supported by this device 6 10_FD 0, RO 10BASE-T full-duplex support: 1: 10BASE-T full-duplex supported by this PHY 0: 10BASE-T full-duplex not supported by this PHY 5 10_HD 0, RO 10BASE-T half-duplex support: 1: 10BASE-T half-duplex supported by this PHY 0: 10BASE-T half-duplex not supported by this PHY 4:0 Selector 0_0001, Protocol selection bits: RO These bits contain the binary encoded protocol selector supported by this PHY. [0 0001] indicates that this PHY supports IEEE 802.3u CSMA/CD. 73 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 8.1.6 PHY Mode Auto Negotiation Link Partner Ability Register (PM_ANLPAR) Address 05h Bit Bit Name Default Description 15 NP 0, RO Next page indication: 1: Link partner next page enabled 0: Link partner not next page enabled 14 ACK 1, RO Acknowledgement: 1: Link partner ability for reception of data word acknowledged 0: Not acknowledged 13 RF 0, RO Remote fault: 1: Remote fault indicated by link partner 0: No remote fault indicated by link partner 12:11 Reserved 0, RO Reserved. Write as 0, read as “don’t care”. 10 Pause 1, RO Pause: 1: Pause operation supported by link partner 0: Pause operation not supported by link partner 9 T4 0, RO 100BASE-T4 support: 1: 100BASE-T4 supported by link partner 0: 100BASE-T4 not supported by link partner 8 TX_FD 1, RO 100BASE-TX full-duplex support: 1: 100BASE-TX full-duplex supported by link partner 0: 100BASE-TX full-duplex not supported by link partner 7 TX_HD 0, RO 100BASE-TX half-duplex support: 1: 100BASE-TX half-duplex supported by link partner 0: 100BASE-TX half-duplex not supported by link partner 6 10_FD 0, RO 10BASE-T full-duplex support: 1: 10BASE-T full-duplex supported by link partner 0: 10BASE-T full-duplex not supported by link partner 5 10_HD 0, RO 10BASE-T half-duplex support: 1: 10BASE-T half-duplex supported by link partner 0: 10BASE-T half-duplex not supported by link partner 4:0 Selector 0_0001, Protocol selection bits: RO Link partner’s binary encoded protocol selector. 8.1.7 PHY Mode Auto Negotiation Expansion Register (PM_ANER) Address 06h Bit Bit Name Default Description 15:5 Reserved 0, RO Reserved. Write as 0, read as “don’t care”. 4 PDF 0, RO Parallel detection fault: 1: Fault detected via the parallel detection function 0: No fault detected 3 LP_NP_AB 0, RO Link partner next page enable: 1: Link partner next page enabled 0: Link partner not next page enabled 2 NP_AB 0, RO PHY next page enable: 0: PHY not next page enabled 1 Page_RX 1, RO New page reception: 1: New page received 0: New page not received 0 LP_AN_AB 1, RO Link partner auto-negotiation enable: 1: Auto-negotiation supported by link partner 74 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 8.1.8 PHY Mode Control Register (PM_Control) Address 10h Bit Bit Name 15 14 13 12 11 10 9 Reserved 8 Media Information Default 0, RO 0, RO 0, RO 0, RO 0, RO 0, RO 0, RW 1, RW 7:0 Media Information 0x00, RW Description Reserved Reserved Reserved Reserved Reserved Reserved Reserved. Media Information bit 8, MDINF [8]. This bit is reported to AX88772B software driver in MDINF [8] bit of Interrupt Endpoint as described in section 6.3. When AX88772B operates in PHY mode, the typical usage is to indicate to AX88772B software driver that the external Ethernet MAC has finished initialization and is ready to send and receive packets with AX88772B, by writing ’0’ to this bit. Also, any time when external Ethernet MAC can’t be set online for any reasons, it can write ‘1’ to this bit to inform AX88772B software driver. This bit can also function as a link-up remote wake event in PHY mode. In other words, after AX88772B enters into suspend mode instructed by USB Host, the external Ethernet MAC can write this bit to have a ‘1’ to ‘0’ transition which will be used as link-up remote wakeup trigger event to awake AX88772B and the USB Host. Media Information bit [7:0], MDINF [7:0]. This 8 bits data is reported to AX88772B software driver in MDINF [7:0] bits of Interrupt Endpoint as described in section 6.3. When AX88772B operates in PHY mode, the external Ethernet MAC can define some command codes to send some messages to AX88772B software driver using this byte. 75 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9 Electrical Specifications 9.1 DC Characteristics 9.1.1 Absolute Maximum Ratings Symbol VCCK VCC18A VCC3IO VCC3R3 VCC3A3 VCC33A_PLL VCC33A_H VIN18 VIN3 Description Rating Unit Digital core power supply - 0.3 to 2.16 V Analog Power. 1.8V - 0.3 to 2.16 V Power supply of 3.3V I/O - 0.3 to 4 V Power supply of on-chip voltage regulator - 0.3 to 4 V Analog Power 3.3V for Ethernet PHY bandgap - 0.3 to 3.8 V Analog Power 3.3V for USB PLL. - 0.3 to 4 V Analog Power 3.3V for USB TX and RX - 0.3 to 4 V Input voltage of 1.8V I/O - 0.3 to 2.16 V Input voltage of 3.3V I/O - 0.3 to 4.0 V Input voltage of 3.3V I/O with 5V tolerant - 0.3 to 5.8 V TSTG Storage temperature - 65 to 150 ℃ IIN DC input current 20 mA IOUT Output short circuit current 20 mA Note: Permanent device damage may occur if absolute maximum ratings are exceeded. Functional operation should be restricted to the optional sections of this datasheet. Exposure to absolute maximum rating condition for extended periods may affect device reliability. 9.1.2 Recommended Operating Condition Symbol VCCK VCC18A VCC3R3 VCC3IO VCC33A_H VCC33A_PLL VCC3A3 VIN18 VIN3 Tj Ta Description Digital core power supply Analog core power supply Power supply of on-chip voltage regulator Power supply of 3.3V I/O Analog Power 3.3V for USB TX and RX Analog Power 3.3V for USB PLL. Analog power supply for bandgap Input voltage of 1.8 V I/O Input voltage of 3.3 V I/O Input voltage of 3.3 V I/O with 5V tolerance Junction operating temperature Commerical ambient operating temperature in still air Industrial ambient operating temperature in still air Min 1.62 1.62 2.97 2.97 2.97 2.97 2.97 0 0 0 -40 0 -40 Typ 1.8 1.8 3.3 3.3 3.3 3.3 3.3 1.8 3.3 3.3 25 - Max 1.98 1.98 3.63 3.63 3.63 3.63 3.63 1.98 3.63 5.25 125 70 85 76 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Unit V V V V V V V V V V ℃ ℃ AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.1.3 Leakage Current and Capacitance Symbol IIN IOZ CIN COUT Description Input current Tri-state leakage current Input capacitance Conditions No pull-up or pull-down Output capacitance Min -10 -10 - Typ ±1 ±1 2.2 Max 10 10 - Unit μA μA pF - 2.2 - pF CBID Bi-directional buffer capacitance 2.2 pF Note: The capacitance listed above does not include pad capacitance and package capacitance. One can estimate pin capacitance by adding a pad capacitance of about 0.5pF to the package capacitance. 9.1.4 DC Characteristics of 3.3V I/O Pins Symbol VCC3IO Tj Vil Vih Vt VtVt+ Vol Voh Rpu Rpd Iin IOZ Description Conditions Power supply of 3.3V I/O 3.3V I/O Junction temperature Input low voltage LVTTL Input high voltage Switching threshold Schmitt trigger negative going LVTTL threshold voltage Schmitt trigger positive going threshold voltage Output low voltage Iol = 8mA Output high voltage Ioh = -8mA Input pull-up resistance Vin = 0 Input pull-down resistance Vin = VCC3IO Input leakage current Vin = VCC3IO or 0 Input leakage current with pull-up Vin = 0 resistance Input leakage current with pull-down Vin = VCC3IO resistance Tri-state output leakage current Min Typ 2.97 3.3 0 25 2.0 1.5 0.8 1.1 Max 3.63 125 0.8 - Unit V ℃ V V V V - 1.6 2.0 V 2.4 40 40 -10 -15 75 75 ±1 -45 0.4 190 190 10 -85 V V KΩ KΩ μA μA 15 45 85 μA -10 ±1 10 μA 77 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.1.5 DC Characteristics of 3.3V with 5V Tolerance I/O Pins Symbol VCC3IO Tj Vil Vih Vt VtVt+ Vol Voh Rpu Rpd Iin IOZ Description Conditions Power supply of 3.3V I/O 3.3V I/O Junction temperature Input low voltage LVTTL Input high voltage Switching threshold Schmitt trigger negative going LVTTL threshold voltage Schmitt trigger positive going threshold voltage Output low voltage Iol = 8mA Output high voltage Ioh = -8mA Input pull-up resistance Vin = 0 Input pull-down resistance Vin = VCC3IO Input leakage current Vin = 5.5V or 0 Input leakage current with pull-up Vin = 0 resistance Input leakage current with pull-down Vin = VCC3IO resistance Tri-state output leakage current Vin = 5.5V or 0 Min Typ 2.97 3.3 0 25 2.0 1.5 0.8 1.1 Max 3.63 125 0.8 - Unit V ℃ V V V V - 1.6 2.0 V 2.4 40 40 0.4 190 190 -15 75 75 ±5 -45 -85 V V KΩ KΩ μA μA 15 45 85 μA ±10 μA 9.1.6 DC Characteristics of Voltage Regulator Symbol VCC3R3 Tj Iload V18F Description Power supply of on-chip voltage regulator. Operating junction temperature. Driving current. Conditions Cout ESR Typ Max Unit 3.3 3.6 V 0 25 125 ℃ - - 150 mA Output voltage of on-chip VCC3R3 = 3.3V voltage regulator. Dropout voltage. △V18F = -1%, Iload = 10mA Line regulation. VCC3R3 = 3.3V, Iload = 10mA 1.71 1.8 1.89 V - 0.2 0.2 0.4 V %/V VCC3R3 = 3.3V, 1mA ≦ Iload ≦ 150mA VCC3R3 = 3.3V,-40℃ ≦ Tj ≦ 125℃ VCC3R3 = 3.3V, Iload = 0mA, Tj = 25 ℃ Quiescent current at 125 ℃ VCC3R3 = 3.3V, Iload = 0mA, Tj = 125 ℃ Output external capacitor. Allowable effective series resistance of external capacitor. - 0.02 0.05 %/mA - 0.4 - mV/ ℃ - 66 96 μA - 85 115 μA 3.3 0.5 - - μF Ω Normal operation Vdrop △V18F (△VCC3R3 x V18F) Load regulation. △V18F (△Iload x V18F) Temperature coefficient. △V18F △Tj Iq_25℃ Quiescent current at 25 ℃ Iq_125℃ Min 3.0 78 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.1.7 DC Characteristics of Fiber Interface Symbol Vol Voh |Vod| Vol(od) Voh(od) |Vod|(od) Vicm |Vidth| Fiber Transmitter Specification Description Conditions Output low voltage Output high voltage Differential output voltage Output low voltage (overdrive) Output high voltage (overdrive) Differential output voltage (overdrive) Fiber Receiver Specification Input commond-mode voltage range Input differential threshold voltage Min 1.2 2.0 0.54 1.1 2.2 0.65 Typ 1.57 2.4 0.83 1.5 2.5 1.02 Max 1.95 2.7 1.15 1.85 2.8 1.4 Unit V V V V V V 1.67 50 2.0 - 2.33 - V mV Fiber SD (Signal Detect) Input Voltage Specification SD input voltage (Visd) Operation mode Visd < 0.2V Copper mode 1.0V < Visd < 1.8V Fiber mode No signal detected Visd > 2.2V Fiber mode Signal detected 79 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.2 Thermal Characteristics Description Thermal resistance of junction to case Thermal resistance of junction to ambient Note: Symbol Θ JC Θ JA Rating 16.7 52.2 Units °C/W °C/W  JA ,  JC defined as below  JA = TJ  T A T  TC ,  JC = J P P TJ: maximum junction temperature TA: ambient or environment temperature TC: the top center of compound surface temperature P: input power (watts) 9.3 Power Consumption Symbol Description IVCC18 Current Consumption of 1.8V Conditions Min Typ Max Unit Operating at Ethernet 100Mbps full duplex mode and - 78.2 - mA USB High speed mode - 31.9 - mA Operating at Ethernet 100Mbps full duplex mode and - 71.4 - mA USB Full speed mode - 25.7 - mA Operating at Ethernet 10Mbps full duplex mode and - 21.6 - mA USB High speed mode - 34.3 - mA IVCC33 Current Consumption of 3.3V IVCC18 Current Consumption of 1.8V IVCC33 Current Consumption of 3.3V IVCC18 Current Consumption of 1.8V IVCC33 IVCC18 IVCC33 IVCC18 IVCC33 IVCC18 Current Consumption of 3.3V Current Consumption of 1.8V Current Consumption of 3.3V Current Consumption of 1.8V Current Consumption of 3.3V Current Consumption of 1.8V Operating at Ethernet 10Mbps full duplex mode and USB Full speed mode Ethernet unlink (Disable AutoDetach) - Ethernet unlink (Enable AutoDetach) IVCC33 Current Consumption of 3.3V 16.3 25.4 17.3 20.6 3.3 - 4.5 IVCC18 Current Consumption of 1.8V IVCC33 Current Consumption of 3.3V IVCC18 Current Consumption of 1.8V IVCC33 Current Consumption of 3.3V IVCC18 Current Consumption of 1.8V mA mA mA mA mA mA Suspend and enable Remote WakeUp and disable WOLLP (WOL Low Power) (Refer to 6.2.1.23) - 63.7 - mA - 12.8 - mA Suspend and enable Remote WakeUp and enable WOLLP (WOL Low Power) (Refer to 6.2.1.23) - 7.7 - mA - 9.8 - mA Suspend and disable Remote WakeUp - 20 - μA - 0.2 78.2 - mA mA - 31.9 167 - mA mA IVCC33 Current Consumption of 3.3V IDEVICE Power consumption of AX88772B full loading (chip only) 1.8V 3.3V ISYSTEM Power consumption of AX88772B Total of 3.3V (Including VCC3R3 regulator supplies 1.8V to VCCK and full loading (demo board) VCC18A) Table 14 : Power consumption 80 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.4 Power-up Sequence At power-up, the AX88772B requires the VCC3R3/VCC3IO/VCC3A3/VCC33A_H/ VCC33A_PLL power supply to rise to nominal operating voltage within Trise3 and the V18F/VCCK/VCC18A power supply to rise to nominal operating voltage within Trise2. Trise3 3.3V VCC3R3/VCC3IO/VCC3A3 /VCC33A_H/ VCC33A_PLL 0V Tdelay32 Trise2 1.8V V18F/VCCK/VCC18A 0V Trst_pu RESET_N Tclk XTL25P/ XTL25N Symbol Trise3 Trise2 Tdelay32 Tclk Trst_pu *1 : Description 3.3V power supply rise time 1.8V power supply rise time 3.3V rise to 1.8V rise time delay 25Mhz crystal oscillator start-up time RSTn low level interval time from power-up Condition From 0V to 3.3V From 0V to 1.8V From VCC18A = 1.8V to first clock transition of XTALIN or XTALOUT From VCCK/VCC18A = 1.8V and VCC3IO = 3.3V to RSTn going high Min 0.4 -5 - Typ 1 Max 10 10 5 - Unit ms ms ms ms Tclk + - - ms Trst *1 Please refer to 1.09.19.5.2 Reset Timing for the details about the Trst. 81 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.5 AC Timing Characteristics Notice that the following AC timing specifications for output pins are based on CL (Output load) =50pF. 9.5.1. Clock Timing XTL25P TP_XTL25P TH_XTL25P TL_XTL25P VIH VIL Symbol TP_XTL25P TH_XTL25P TL_XTL25P Description XTL25P clock cycle time XTL25P clock high time XTL25P clock low time Condition Min - Typ 40.0 20.0 20.0 Max - Unit ns ns ns 9.5.2. Reset Timing XTL25P RESET_N Trst Symbol Trst Description Reset pulse width after XTL25P is running Min 125 Typ - Max 250000 Unit XTL25P clock cycle (Note) Note: If the system applications require using hardware reset pin, RESET_N, to reset AX88772B during device initialization or normal operation after VBUS pin is asserted, the above timing spec (Min=5 μ s, Max=10ms) of RESET_N should be met. 82 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.5.3. Serial EEPROM Timing T ch T cl T clk EECK T dv T od EEDIO (as OUT PUT) T lcs T scs T hcs EECS Th Ts EEDIO (as INPUT ) Symbol Tclk Tch Tcl Tdv Tod Tscs Thcs Tlcs Ts Th Description EECK clock cycle time EECK clock high time EECK clock low time EEDIO output valid to EECK rising edge time EECK rising edge to EEDIO output delay time EECS output valid to EECK rising edge time EECK falling edge to EECS invalid time Minimum EECS low time EEDIO input setup time EEDIO input hold time Min 2560 2562 2560 7680 23039 20 0 Typ 5120 2560 2560 - Max - 83 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Unit ns ns ns ns ns ns ns ns ns ns AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.5.4. Station Management Timing Tch Tcl Tclk MDC Tod MDIO (as OUTPUT) Ts Th MDIO(as INPUT) MAC mode with RMII: MDC=Output Symbol Description Tclk MDC clock cycle time Tch MDC clock high time Tcl MDC clock low time Tod MDC clock rising edge to MDIO output delay Ts MDIO data input setup time Th MDIO data input hold time Min 0.5 125 0 Typ 640 320 320 - Max - Unit ns ns ns Tclk ns ns PHY mode (Reverse-RMII): MDC=Input Symbol Description Tclk MDC clock cycle time Tch MDC clock high time Tcl MDC clock low time Tod MDC clock rising edge to MDIO output delay Ts MDIO data input setup time Th MDIO data input hold time Min 0 10 10 Typ 320 160 160 - Max 300 - Unit ns ns ns ns ns ns Note: MDC is Pin#17, MDIO is Pin#18. 84 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.5.5. RMII / Reverse-RMII Timing Tref_cl Tref_ch Tref_clk REFCLK_I Tref_rs Tref_rh RXD[1:0] CRSDV Symbol Tref_clk Tref_ch Tref_cl Tref_rs Tref_rh Description Clock cycle time Clock high time Clock low time RXD [1:0], CRSDV setup to rising REFCLK_I RXD [1:0], CRSDV hold (delay time) from rising Min 4.0 2.0 Typ 20.0 10.0 10.0 - Max - Unit ns ns ns ns ns Max - Unit ns ns REFCLK_I Tref_cl Tref_ch Tref_clk REFCLK_I Tref_ts Tref_th TXD[1:0] TXEN Symbol Tref_ts Tref_th Description TXD [1:0], TXEN setup to rising REFCLK_I TXD [1:0], TXEN hold from rising REFCLK_I Min 4.0 2.0 Typ - 85 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.5.6. 10/100M Ethernet PHY Interface Timing +Vtxov +Vtxa Tr: from 10% to 90% 0V 10/100M Ethernet PHY Transmitter Waveform and Spec: Symbol Description Condition Peak-to-peak differential output voltage 10BASE-T mode Vtxa *2 Peak-to-peak differential output voltage 100BASE-TX mode Tr / Tf Signal rise / fall time 100BASE-TX mode Output jitter 100BASE-TX mode, scrambled idle signal Vtxov Overshoot 100BASE-TX mode Min 4.4 1.9 3 - Typ 5 2 4 - Max Units 5.6 V 2.1 V 5 ns 1.4 ns - - 5 Min Typ Max Units 10 300 2.97 100 400 3.3 - 500 3.63 - KΩ mV V meter % 10/100M Ethernet PHY Receiver Spec: Symbol Description Receiver input impedance Differential squelch voltage Common mode input voltage Maximum error-free cable length Condition 10BASE-T mode 86 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 9.5.7. USB Transceiver Interface Timing VCC33A_H/ VCC33A_PLL= 3.0 ~ 3.6 V. Static Characteristic for Analog I/O Pins (DP/DM): Symbol VHSDIFF Description Conditions USB 2.0 Transceiver (HS) Input Levels (Differential Receiver) High speed differential input |VI (DP) –VI (DM)| sensitivity Measured at the connection as Min Typ Max Unit 300 - - mV -50 - 500 mV - - 100 mV 200 - - mV -10 - 10 mV -10 - 10 mV -360 - 400 mV 700 - 1100 mV -900 - -500 mV 40.5 45 Termination voltage for pull-up resistor on pin RPU USB 1.1 Transceiver (FS/LS) Input Levels (Differential Receiver) Differential input sensitivity |VI (DP) –VI (DM)| 3.0 - 3.6 V 0.2 - - V Differential common mode voltage Input Levels (Single-Ended Receiver) Single ended receiver threshold 0.8 - 2.5 V 0.8 - 2.0 V Low-level output voltage 0 - 0.3 V High-level output voltage 2.8 - 3.6 V an application circuit. VHSCM VHSSQ VHSOI VHSOL VHSOH VCHIRPJ VCHIRPK RDRV VTERM VDI VCM VSE High speed data signaling common mode voltage range High speed squelch detection threshold Squelch detected No squelch detected Output levels (differential) High speed idle level output voltage High speed low level output voltage High speed high level output voltage Chirp-J output voltage Chirp-K output voltage Driver output impedance Resistance Equivalent resistance used as internal chip Termination 49.5 Ohm Output levels VOL VOH 87 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller Dynamic Characteristic for Analog I/O Pins (DP/DM): Symbol tHSR tHSF Description Conditions Driver Characteristic High-Speed Mode High-speed differential rise time - Min Typ Max Unit 500 - - ps High-speed differential fall time - 500 - - ps 4 - 20 ns 4 - 20 ns Full-Speed Mode CL=50pF; 10 to 90% of tFR Rise time of DP/DM tFF Fall time of DP/DM CL=50pF; 90 to 10% of Differential rise/fall time Excluding the first transition from idle mode 90 - 110 % Excluding the first transition from idle mode Driver Timing High-Speed Mode See eye pattern of template 1 1.3 - 2.0 V tFRMA VCRS |VOH – VOL| |VOH – VOL| matching (tFR / tFF) Output signal crossover voltage Driver waveform requirement VI, FSE 0, OE to DP, DN Propagation delay Data source jitter and receiver jitter tolerance tPLH(rcv) tPHL (rcv) Receiver propagation delay (DP; DM to RCV) tPLH(single) tPHL(single) Receiver propagation delay (DP; DM to VOP, VON) Follow template 1 described in USB rev 2.0 spec. (http://www.usb.org/developers/docs) Full-Speed Mode For detailed description of VI, 15 ns FSE 0 and OE, please refer to USB rev 1.1specification. Receiver Timing High-Speed Mode See eye pattern of template 4 Follow template 4 described in USB rev 2.0 spec. (http://www.usb.org/developers/docs) Full-Speed Mode For detailed description of 15 ns RCV, please refer to USB rev (Note) 1.1specification. 15 ns (Note) Note: Full-Speed Timing diagram 88 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 10 Package Information 10.1 AX88772B 64-pin LQFP package He E A A2 L L1 Hd D A1 pin 1 e b  Symbol Millimeter A1 Min 0.05 Typ - Max 0.15 A2 1.35 1.40 1.45 A - - 1.60 b 0.13 0.18 0.23 D 7.00 E 7.00 e - 0.40 Hd 9.00 He 9.00 - L 0.45 0.60 0.75 L1 - 1.00 REF -  0° 3.5° 7° 89 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 11 Ordering Information Part Number AX88772BLF AX88772BLI Description 64 PIN, LQFP Package, Commerical grade 0°C to +70 °C (Green, Lead-Free) 64 PIN, LQFP Package, Industrial grade -40°C to +85 °C (Green, Lead-Free) 90 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller 12 Revision History Revision Date Comment V1.00 V1.01 2010/04/08 2010/05/04 V1.02 2010/06/18 V1.03 2010/07/05 V1.04 2011/08/10 V1.05 2013/01/18 V1.06 2013/02/27 Initial release. 1. Modified some descriptions in Section 4.2. 2. Modified power saving level description in Section 6.2.1.23. 3. Added Section 9.2 “Thermal Characteristics”. 1. Corrected some descriptions in Section 2.1. 2. Corrected some descriptions in Section 4.1.4. 3. Corrected a typo in Section 4.1.2. 4. Corrected some typos in Section 4.2. 5. Modified some descriptions in Section 4.2.1. 1. Corrected some typos in Section 6.2.1.19, 6.2.1.20. 2. Corrected the Storage Temperature information in Section 9.1.1. 3. Corrected the Tj and Ta information in Section 9.1.2. 4. Added more descriptions in Appendix C. 5. Updated some description in Figure 24. 1. Updated some descriptions in Section 6.2.1.37. 2. Corrected some typos in Section 8.1.4 and 9.1.2. 3. Added more descriptions in Table 13 of Section 8. 4. Added copyright legal header information. 1. Updated the Trise3 min. time to 0.4ms in Section 9.4. 2. Modified some descriptions in Section 6.2.1.12. 1. Modified some descriptions in Section 2.1, 3.11, 6.2.1.12, 6.2.1.25. 2. Corrected some typos in Table 9, Section 6.2.1.17. 3. Added the PHY registers reset values information in Table 12. 4. Added the “DC Characteristics of Fiber Interface” information in Section 9.1.7. 91 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller APPENDIX A. Default Wake-On-LAN (WOL) Ready Mode This Default WOL Ready Mode application is different from normal operation where AX88772B Suspend/Resume state usually has to be configured by software driver during normal system operation. This application applies to a system that needs to use a predefined remote wakeup event to turn on the power supply of the system processor and its peripheral circuits without having any system software running in the beginning. This is quite useful when a system has been powered down already and a user needs to power on the system from a remote location. The AX88772B can be configured to support Default WOL Ready Mode, where no system driver is required to configure its WOL related settings after power on reset. A system design usually partitions its power supply into two or more groups and the AX88772B is supplied with an independent power separated from the system processor. The power supply of AX88772B is usually available as soon as power plug is connected. The power supply of system processor remains off initially when power plug is connected and is controlled by AX88772B’s PME pin, which can be activated whenever AX88772B detects a predefined wakeup event such as valid Magic Packet reception, Secondary PHY link-up, or the EXTWAKEUP_N pin trigger. To conserve power consumption, initially the USB host controller communicating with AX88772B can also be unpowered as the system processor. The PME pin of AX88772B can control the power management IC to power up the system processor along with the USB host controller, which will perform USB transactions with AX88772B after both have been initialized. The pin polarity of PME is configured as high active when enabling Default WOL Ready Mode (see following A.1 Note 2). Note that the AX88772B must be in self-power (via setting EEPROM Flag [0]) mode for this function. A.1 Procedure to Enable Default WOL Ready Mode AX88772B To enable Default WOL Ready Mode, a user needs to configure GPIO_0 pin definition as PME (via setting EEPROM Flag [12]) and have GPIO_1 pulled-up with a 4.7Kohm resistor. After power on reset, AX88772B will disable most functions including USB transceiver (see Note 3) but enable Magic Packet detector logic and internal Ethernet PHY and its auto-negotiation function to be ready to receive Magic Packet. In PHY mode for AX88772B, Secondary PHY link-up can be a wakeup event (see Note 1). 92 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller When a valid Magic Packet is received, AX88772B will assert the PME pin to indicate to system processor the wakeup event. The PME pin, when being configured as static level output signal (via setting EEPROM Flag [15], see Note 2), can be used to control the power management IC to enable system power supply. After asserting the PME pin, AX88772B will also exit from the Default WOL Ready Mode and revert back to normal operation mode to start normal USB device detection, handshaking, and enumeration. The PME pin, when being configured as static level output signal, maintains its signal level until RESET_N is asserted again. If asserting RESET_N to AX88772B with GPIO_1 pulled-up, the Default WOL Ready Mode will be re-entered. Otherwise (GPIO_1 being pulled-down), the normal operation mode (non-Default WOL Ready Mode) will be entered and the normal USB device detection, handshaking and enumeration process should take place right after RESET_N negation. Note 1: For complete truth table of wakeup events supported, please refer to below Remote Wakeup Truth Table on the “GPIO_1 = 1” setting. Note 2: Please refer to 4.1.2 Flag. The bit [15:12] of Flag (PME_IND, PME_TYP, PME_POL, PME_PIN) = 0111. Note 3: When the Default WOL Ready Mode is enabled, the DP/DM pins ofAX88772B will be in tri-state. Note 4: It is recommended that VBUS pin be connected to system power group directly. This way the V_BUS will become logic high when power management IC enables the system power supply. Waken Up by USB Host Device Device Device Device Device Device Device RWU bit Set_Feature of Flag standard byte in command EEPROM X X 0 1 1 1 1 1 X 0 1 1 1 1 1 0 Setting Wakeup Event Device RWWF RWMP RWLC GPIO_1 Host Receiving Receiving Link Link status EXTWAKEU wakes up (*) sends a Wakeup a Magic status change P_N pin resume Frame Packet change detected signal detected On On Secondary Primary PHY PHY X X X 0 JK Yes X 1 0 0 0 X 0 X 0 1 0 0 X 0 X 0 0 1 1 X 0 0 0 0 0 0 0 1 X Yes X X X Yes Yes Yes Yes Yes *: About Default WOL Ready Mode, please refer to section 2.2 GPIO_1 Settings. Table 15 X : Remote Wakeup Truth Table 93 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. Low-pulse Low-pulse No Yes Yes Yes Yes Yes Yes AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller A.2 Flow Chart of Default WOL Ready Mode Step 1: (1) Operation Mode setting by Pin#19, #21 (see Section 2.2 and Note 1). (2) Set GPIO_0 as PME definition (see Note 2). (3) Have GPIO_1 pulled-up to enable Default WOL Ready mode. (4) Power on reset, either by on-chip power-on reset circuit or RESET_N pin. The Default WOL Ready Mode is enabled. Step 2: Wakeup event? (See Note 1) No Yes Step 3: (1) PME asserts with static level that is used as power control to system processor. (2) Default WOL Ready Mode is disabled. Step 4: System processor powers on and supplies VBUS to AX88772B. Step 5: AX88772B is in normal operation mode. Step 6: Assert RESET_N AND GPIO_1 = 1? No Yes (1) PME de-asserts. (2) The Default WOL Ready Mode is enabled. 94 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller APPENDIX B. Ethernet PHY Power and Reset Control This section indicates some information about AX88772B Ethernet PHY Power and Reset control. In Ethernet PHY’s BMCR register, bit 11 (power down) is used as power-down control to the embedded Ethernet PHY. This bit turns off the power consumption of all the digital and analog blocks except for OSC and PLL. AX88772B Embedded Ethernet PHY In Software Reset Register (0x20), the IPRL bit is used as reset signal to the entire embedded Ethernet PHY. In Software Reset Register (0x20), the IPPD bit is used as power-down control to the embedded Ethernet PHY. This bit turns off the power consumption of all the digital and analog blocks including OSC, PLL, and bandgap, etc. Figure 22 : Ethernet PHY Oscillator/PLL Block Diagram 95 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller The following power-up and reset signal timing issued to the Ethernet PHY of AX88772B must be met in order to initialize the Ethernet PHY properly and reliably every time after it has been put into power-down mode previously. Symbol Description T1 Ethernet PHY in power-down mode where the internal 25Mhz OSC, 125Mhz PLL and analog bandgap of AX88772B are completely turned off for max. power saving. This is the lowest power consumption mode of the Ethernet PHY. Note: Alternatively, user can use the Ethernet PHY’s BMCR register bit 11, “power down”, to set the Ethernet PHY into power-down mode. When the BMCR bit 11 power-down is used, the 25Mhz OSC and 125Mhz PLL will remain toggled but the analog bandgap will be turned off. The power consumption of BMCR bit 11 power-down mode is about 15mA more than the Software Reset Register (0x20) IPPD bit power-down mode. T2 From Ethernet PHY power-up to 25Mhz OSC and 125Mhz PLL stable time. Note: If the IPRL is low during T2, it should be kept at low for more than T2 time so that the Ethernet PHY can be reset properly right after the power-up. In other words, the successful and reliable reset to the Ethernet PHY can only be accomplished with a stable running 25Mhz OSC and 125Mhz PLL clocks. T3 Mandatory Ethernet PHY reset time after it has just been powered up from the previous power-down mode (after >T2 time). Also, software can issue reset to the Ethernet PHY during its non-power-down mode, but the minimum reset duration defined here must be met. Figure 23 Min 500ns Typ - Max - 600ms - - 500ns - - : Ethernet PHY Power-up & Reset Timing Diagram 96 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller APPENDIX C. External EEPROM / Internal ROM / Internal ID-SRAM of Vender Descriptions selection The AX88772B supports ASIX default device descriptors ROM and ID-SRAM to store the customized device descriptors for USB enumeration process. Therefore, the AX88772B supports two methods to replace EEPROM if AX88772B is embedded in a system board with USB Host. The following Figure 24 shows the source of vender descriptions selection policy of AX88772B.  EEPROM-less and selected ASIX default device descriptor ROM: The Host will bring up AX88772B device by embedded internal device descriptor ROM after USB enumeration process due to none of external EEPROM, checksun error or non-programmed EEPROM. This method is only suitable for those applications that can work fine on the AX88772B hardware default SROM setting, and the designer should manually assign an unique MAC address for each AX88772B device. Please refer to Section 4.2 “Internal ROM Default Settings” for more details and contact ASIX's Support (support@asix.com.tw) for further support.  EEPROM-less and selected ID-SRAM: The Host will bring up a customization of AX88772B device by programmed ID-SRAM after two procedures of USB enumeration process. First, the Host will find AX88772B device by embedded internal device descriptor ROM after USB enumeration process due to none of external EEPROM. The system can program customized device descriptors into internal ID-SRAM by AX88772B’s vendor command (Note AC.1) and make a global software reset (Note AC.2) after that. Second, based on the source of vender descriptors selection policy of AX88772B, the Host will bring up AX88772B device by ID-SRAM due to none of external EEPROM and programmed ID-SRAM. This method is only suitable for AX88772B self-power applications. Please refer to Figure 24 for more details and contact ASIX's Support (support@asix.com.tw) for further support. Note AC.1 Note AC.2 Vendor Command RX/TX/ID-SRAM Read/Write Register, 02h and 03h Vendor Command Global Reset Control Register, F0h The ID-SRAM only cleared by power cycle or hardware reset. 97 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772BLF / AX88772BLI Low-power USB 2.0 to 10/100M Fast Ethernet Controller reset Power on reset ? no yes Autoload EEPROM & caculate checksum value Clear ID-SRAM if power on reset Compare checksum with EEPROM address 0x18 (low byte) EEPROM available? no yes AX88772B select External EEPROM Read ID-SRAM from address 0 to 14h AX88772B select ID-SRAM If first word is zero then indicates ID-SRAM is empty AX88772B select internal ROM VID = ASIX Instale Driver base on VID stored in external EEPROM Instale Driver base on VID stored in ID-SRAM Instale Driver base on VID = ASIX Program internal ID-SRAM by vendor command Normal Operation Start Figure 24 yes ID-SRAM is available? no Issue global reset by vendor command with a programmable timer interval ID-SRAM has not been clear : External EEPROM / Internal ROM / Internal ID-SRAM of Vender Descriptions selection 98 Copyright © 2010-2013 ASIX Electronics Corporation. All rights reserved. AX88772B Low-power USB 2.0 to 10/100M Fast Ethernet Controller 4F, No.8, Hsin Ann Rd., Hsinchu Science Park, Hsinchu, Taiwan, R.O.C. TEL: +886-3-5799500 FAX: +886-3-5799558 Email: support@asix.com.tw Web: http://www.asix.com.tw
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AX88772BLF
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