RoHS Compliant
Vacuum Fluorescent Display
Module
Specification
Model: GU256X64D-7000BX
Specification No.:
DS-1942-0001-00
Date of Issue:
April 11, 2016
(00)
Revision:
Published by
NORITAKE ITRON CORP. / Japan
http://www.noritake-itron.jp
This specification is subject to change without prior notice.
This product complies with RoHS Directive
Please contact our sales consultant for details and to confirm the current status
GU256X64D-7000BX
1
2
3
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7
Contents
General Description ................................................................................................................................. 3
1.1
Scope .............................................................................................................................................. 3
1.2
Construction .................................................................................................................................... 3
1.3
Outline ............................................................................................................................................ 3
1.4
Weight ............................................................................................................................................. 3
1.5
Block Diagram ................................................................................................................................ 3
Electrical specifications .......................................................................................................................... 4
2.1
Absolute Maximum Ratings ............................................................................................................ 4
2.2
Electrical ratings ............................................................................................................................. 4
2.3
Electrical Characteristics ................................................................................................................ 4
Optical Specifications .............................................................................................................................. 5
Environmental Specifications ................................................................................................................. 5
Interface ..................................................................................................................................................... 5
5.1
Type of interface ............................................................................................................................. 5
5.2
Parallel interface ............................................................................................................................. 5
5.2.1
Basic function .............................................................................................................................. 5
5.2.2
Parallel Interface timing .............................................................................................................. 6
5.3
Serial interface ................................................................................................................................ 7
5.3.1
Basic function .............................................................................................................................. 7
5.3.2
Asynchronous serial interface timing .......................................................................................... 7
5.4
Reset timing .................................................................................................................................... 7
Display specification ................................................................................................................................ 8
6.1
Displayable image types ................................................................................................................. 8
6.1.1
Graphic display ........................................................................................................................... 8
6.1.2
Character display ........................................................................................................................ 8
6.2
Display memory .............................................................................................................................. 8
6.3
Window ........................................................................................................................................... 9
6.3.1
Base-Window .............................................................................................................................. 9
6.3.2
User-Window .............................................................................................................................. 9
6.4
Write screen mode ........................................................................................................................ 10
6.4.1
Display screen mode ................................................................................................................ 10
6.4.2
All screen mode ........................................................................................................................ 10
6.5
5×7 and 7×8 Character display format .......................................................................................... 11
Function .................................................................................................................................................. 12
7.1
Commands ................................................................................................................................... 12
7.1.1
Character display ...................................................................................................................... 12
7.1.2
BS (Back Space) ...................................................................................................................... 13
7.1.3
HT (Horizontal Tab) .................................................................................................................. 13
7.1.4
LF (Line Feed) ......................................................................................................................... 14
7.1.5
HOM (Home Position) .............................................................................................................. 15
7.1.6
CR (Carriage Return) ............................................................................................................... 15
7.1.7
US $ xL xH yL yH (Cursor Set) ................................................................................................ 15
7.1.8
CLR (Display Clear) ................................................................................................................. 15
7.1.9
US C n (Cursor display) ........................................................................................................... 15
7.1.10 ESC @ (Initialize Display) ........................................................................................................ 15
7.1.11
ESC % n (Download character ON/OFF) ................................................................................ 16
7.1.12 ESC & a c1 c2 [x1 d1...d(a×x1)]...[xk d1...d(a×xk)] (Download character definition) .............. 16
7.1.13 ESC ? a c (Download character delete) .................................................................................. 17
7.1.14 ESC R n (International font set) ............................................................................................... 17
7.1.15 ESC t n (Character table type) ................................................................................................. 17
7.1.16 US MD1 (Over-write mode) ..................................................................................................... 17
7.1.17 US MD2 (Vertical scroll mode) ................................................................................................. 18
7.1.18 US MD3 (Horizontal scroll mode) ............................................................................................ 18
7.1.19 US s n (Horizontal scroll speed) .............................................................................................. 18
7.1.20 US r n (Reverse display) .......................................................................................................... 18
7.1.21 US w n (Write mixture display mode) ...................................................................................... 19
7.1.22 US X n (Brightness level setting) ............................................................................................. 19
7.1.23 US ( a n [parameter] (Display action command group) ........................................................... 19
7.1.24 US ( a 01h t (Wait) ......................................................................................... 19
7.1.25 US ( a 10h wL wH cL cH s (Scroll display action).......................................... 20
7.1.26 US ( a 11h p t1 t2 c (Blink) ............................................................................. 21
7.1.27 US ( a 40h p (Screen saver) .......................................................................... 21
-1-
GU256X64D-7000BX
7.1.28
7.1.29
7.1.30
7.1.31
US ( f n [parameter] (Bit image display group) ........................................................................ 22
US ( f 11n xL xH yL yH g d(1)...d(k) (Real-time bit image display) ................ 22
US ( d n [parameter] (Dot unit command group) ..................................................................... 23
US ( d 20h xPL xPH yPL yPH m aL aH aE ySL ySH xOL xOH yOL yOH xL xH yL
yH g (Dot unit downloaded bit image display) ........................................................................ 23
7.1.32 US ( d 21h xPL xPH yPL yPH xL xH yL yH g d(1)...d(k) (Dot unit real-time bit
image display) .......................................................................................................................... 24
7.1.33 US ( d 30h xPL xPH yPL yPH m bLen d(1)...d(bLen) (Dot unit character display)
................................................................................................................................................. 26
7.1.34 US ( g n [parameter] (Font command group)........................................................................... 27
7.1.35 US ( g 03h w (Font Width) ............................................................................. 27
7.1.36 US ( g 40h x y (Font Magnification) ............................................................... 27
7.1.37 US ( w n [parameter] (Window command group) .................................................................... 28
7.1.38 US ( w 01h a (Window select) ....................................................................... 28
7.1.39 US ( w 02h a b[xPL xPH yPL yPH xSL xSH ySL ySH] (User Window define /
cancel) ..................................................................................................................................... 29
7.1.40 US ( w 10h a (Write screen mode select) ...................................................... 30
7.1.41 WINx (Window select shortcut) ................................................................................................ 30
7.2
Bit image data format.................................................................................................................... 31
8 Setup ........................................................................................................................................................ 32
8.1
Jumper .......................................................................................................................................... 32
8.1.1
Baud rate setting (for serial interface)....................................................................................... 32
8.1.2
Parallel interface through-holes Pin #3 signal setting ............................................................... 32
9 Connector ................................................................................................................................................ 33
9.1
Parallel interface 14 through-holes (CN3) .................................................................................... 33
9.2
Serial interface 7 through-holes (CN1) ......................................................................................... 33
9.3
3pin connector (CN2).................................................................................................................... 33
10
Firmware Version Notation ........................................................................................................ 33
11
Outline Drawing .......................................................................................................................... 34
Notice for the Cautious Handling of VFD Modules .................................................................................... 35
Revision Note ................................................................................................................................................. 36
-2-
GU256X64D-7000BX
1
General Description
1.1
Scope
This specification covers the operation and operating requirements of the vacuum fluorescent graphic
display module GU256X64D-7000BX.
1.2
Construction
The module consists of a 256 × 64 dot graphic BD-VFD, refresh RAM, character generator, DC/DC
converter, display controller, and all necessary control logic.
The module can simultaneously display graphic patterns and characters on the screen.
1.3
Outline
Power supply:
Interface:
Single 5 VDC power supply
Parallel interface (CMOS-level)
Serial interface (Asynchronous, can accept RS-232 level)
Function:
Character display – 5×7 dot with display attributes
5×7 dot character font
(specification DS-898-0002-xx)
Graphic display
Control command
Character download function
Screen saver function
Applicable VFD Module reliability specification
: TT-99-3102
Applicable VFD Module quality specification
: TT-98-3413
Applicable VFD quality specification
: TT-93-3336D
1.4
Weight
Approximately 122g
1.5
Block Diagram
Controller
Parallel
Parallel
interface
interface
through-holes
circuit
Serial
Serial
interface
interface
through-holes
circuit
BD-VFD
Jumper
VCC
GND
DC/DC
VDD2
Converter
EF1
EF2
-3-
GU256X64D-7000BX
2
Electrical specifications
2.1
Absolute Maximum Ratings
2.2
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power Supply Voltage
VCC
−0.3
-
+6.0
VDC
Logic Input Voltage
D0-D7, /WR, /RD, /RESET
VIN1
−0.3
-
+6.0
VDC
Logic Input Voltage
SIN
VIN2
−20.0
-
+20.0
VDC
Electrical ratings
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power Supply Voltage
VCC
4.75
5.0
5.25
VDC
Driving voltage for the VFD is obtained from the on-board DC/DC converter.
2.3
Electrical Characteristics
Measuring Conditions: Ambient temperature = 25 ºC, VCC = 5.0VDC
Parameter
Symbol
Min.
Typ.
Max.
Unit
Condition
‘L’ Level Logic Input Current
D0-D7, /WR, /RD
IIL1
-
-
−0.15
mA
VIN1=0V
‘L’ Level Logic Input Current
/RESET
IIL2
-
-
−0.6
mA
VIN1=0V
‘H’ Level Logic Input Current
D0-D7, /WR, /RD, /RESET
IIH
-
-
1.0
µADC
VIN1=5V
Logic Input Voltage
D0-D7, /WR, /RD, /RESET
‘H’
VIH1
0.8VCC
-
VCC
-
-
‘L’
VIL1
0
-
0.2VCC
VDC
-
Logic Output Voltage
D7(Busy flag), PBUSY
‘H’
VOH1
3.8
-
VCC
VDC
IOH1=−1.5mA
‘L’
VOL1
0
-
0.6
VDC
IOL1=1.6mA
RIN
3
-
-
kΩ
-
VIH2
3.0
-
+15
VDC
-
Logic Input Resistance
SIN
Logic Input Voltage
SIN
‘H’
‘L’
VIL2
−15
-
0.5
VDC
-
Logic Output Voltage
SBUSY
‘H’
VOH2
4.0
-
VCC
VDC
RL=3kΩ
‘L’
VOL2
0
-
0.5
VDC
RL=3kΩ
Power Supply Current 1
ICC1
-
1.2
1.6
ADC
All dot ON ( L=200% )
Power Supply Current 2
ICC2
-
0.7
0.9
ADC
All dot ON ( L=100% )
Power Supply Current 3
ICC3
-
0.7
0.9
ADC
All dot OFF ( L=200% )
Power Supply Current 4
ICC4
0.5
0.7
ADC
All dot OFF ( L=100% )
Power Supply Current 5
ICC5
Power Consumption 1
-
Power Consumption 2
26
33
mADC
Display Power OFF
6.0
8.0
W
All dot ON ( L=200% )
3.5
4.5
W
All dot ON ( L=100% )
・ At power-on, inrush current can be approximately twice the current in the above table rush.
・ A quick-rise type power supply (> HT
Space for character in next
lower line.
No space for character in
next lower line.
Right end
Display Operation
HT >> Display >> HT
HT >> Display >> HT
MD2 (Vertical scroll mode)
Cursor position
X direction
Y direction
Space for character on right side.
Space for character in next
lower line.
No space for character in next
lower line.
Right end
Display
Operation
Display >> HT
HT >> Display >> HT
HT >> Display >> HT
MD3 (Horizontal scroll mode)
Cursor position
Display Operation
X direction
Y direction
The space for 1 character size is in
right side.
-
Display >> HT
Right end
-
HT >> Display >> HT
- 12 -
GU256X64D-7000BX
7.1.2
BS
(Back Space)
Code:
08h
Function: Cursor moves to the left by one character.
This command has effect for the currently-selected window.
MD1 (Over-write mode) and MD2 (Vertical scroll mode)
Cursor position
X direction
Y direction
Space for character on left side.
Space for one line above.
No space for one line above.
Left end
Display Operation
Cursor moves left by one
character.
Cursor moves to right end of next
upper line.
Cursor does not move.
MD3 (Horizontal scroll mode)
Cursor position
X direction
Y direction
7.1.3
HT
Display Operation
Space for character on left side.
-
Cursor moves left by one
character.
Left end
-
Cursor does not move.
(Horizontal Tab)
Code:
09h
Function: Cursor moves to the right by one character.
This command has effect for the currently-selected window.
MD1 (Over-write mode)
Cursor position
X direction
Y direction
Space for character on right side.
Space for character in next
lower line.
No space for character in next
lower line.
Right end
Display Operation
Cursor moves right by one
character.
Cursor moves to left end of next
lower line.
Cursor moves to left end of top line.
MD2 (Vertical scroll mode)
X direction
Cursor position
Y direction
Space for character on
right side.
Right end
-
Display Operation
Cursor moves right by one character.
Space for character in next
lower line.
Cursor moves to left end of next lower line.
No space for character in next
lower line.
Display contents are scrolled up the required
number of dots, and the bottom line is cleared.
Cursor moves to left end of bottom line.
- 13 -
GU256X64D-7000BX
MD3 (Horizontal scroll mode)
Cursor position
X direction
7.1.4
LF
Display Operation
Y direction
Space for character on right side.
-
Cursor moves right by one character.
Right end
-
Contents of current line scroll left until sufficient space for
character is available at the right end.
Cursor moves to the left edge of newly-created space.
(Line Feed)
Code:
0Ah
Function: Cursor moves to next lower line.
This command has effect for the currently-selected window.
MD1 (Over-write mode)
X direction
Cursor position
Y direction
Display Operation
Space for character in next lower
line.
No space for character in next lower
line.
-
Cursor moves to the same position on next
lower line.
Cursor moves to the same position on top line.
MD2 (Vertical scroll mode)
Cursor position
X direction
-
Display Operation
Y direction
Space for character in next lower
line.
Cursor moves to the same position on next lower
line.
No space for character in next
lower line.
Display contents are scrolled up the required
number of dots, and the bottom line is cleared.
Cursor does not move.
MD3 (Horizontal scroll mode)
Cursor position
X direction
Y direction
-
-
- 14 -
Display Operation
Cursor does not move.
GU256X64D-7000BX
7.1.5
HOM
(Home Position)
Code:
0Bh
Function: Cursor moves to home position (top left).
This command has effect for the currently-selected window.
7.1.6
CR
(Carriage Return)
Code:
0Dh
Function: Cursor moves to left end of current line.
This command has effect for the currently-selected window.
7.1.7
US $ xL xH yL yH
Code:
(Cursor Set)
1Fh 24h xL xH yL yH
xL:
Cursor position x, lower byte (1 dot / unit)
xH:
Cursor position x, upper byte (1 dot / unit)
yL:
Cursor position y, lower byte (8 dots / unit)
yH:
Cursor position y, upper byte (8 dots / unit)
Definable area:
0000h ≤ (xL + xH×100h) ≤ 01FFh
0000h ≤ (yL + yH×100h) ≤ 0007h
Function: Cursor moves to the specified (X, Y) position on Display Memory.
If the specified X, Y position (X and/or Y) is outside the definable area, or outside the currently-selected
window, the command is ignored and the cursor remains in the same position.
This command has effect for the currently-selected window.
7.1.8
CLR
Code:
(Display Clear)
0Ch
Function: Display screen is cleared and cursor moves to home position.
This command has effect for the currently-selected window.
7.1.9
US C n
Code:
(Cursor display)
1Fh 43h n
n:
Definable area:
Cursor display setting
00h ≤ n ≤ 01h
n = 00h: Cursor display OFF
n = 01h: Cursor display ON
Default: n = 00h (Cursor OFF)
Function: Cursor display setting.
When cursor display is ON, cursor position appears as reverse blinking, 1×8 dots.
When cursor is in hidden area, it does not appear, even when cursor display is set ON.
This command has effect for the currently-selected window.
7.1.10 ESC @
Code:
(Initialize Display)
1Bh 40h
Settings return to default values.
Jumper settings are not re-loaded.
Contents of receive buffer remain in memory.
- 15 -
GU256X64D-7000BX
7.1.11 ESC % n (Download character ON/OFF)
Code:
1Bh 25h n
Function: Enable or disable display of download characters.
n = 01h: Enable (If download character is not defined, built-in character is displayed)
n = 00h: Disable
Characters already displayed are not affected.
7.1.12 ESC & a c1 c2 [x1 d1...d(a×x1)]...[xk d1...d(a×xk)] (Download character definition)
Code:
1Bh 26h
a c1 c2 [x1 d1...d(a×x1)]...[xk d1...d(a×xk)]
a:
Select character type
c1:
Start character code
c2:
End character code
x:
Number of dots for X-direction
d:
Definition data
Definable area:
a = 01h
x = 05h: 5×7 dot
x = 07h: 7×8 dot
20h ≤ c1 ≤ c2 ≤ FFh
00h ≤ d ≤ FFh
x = 05h: Upper 7 bits are valid.
x = 07h: All 8 bits are valid.
k = c2 − c1 + 1
Function: Define download characters into RAM.
A maximum of 16 download characters can be defined.
x = 05h: Defined as 5×7 dot. Surrounding space is same as standard character display.
x = 07h: Defined as 7×8 dot. Displayed as 6×8 or 7×8 dot character (refer to 6.5 “5×7 and 7×8
Character display format”).
After the maximum number of download characters are defined, in order to define other character
codes, space must first be obtained using the Download character delete command.
Downloaded characters are valid until redefined, an initialize (ESC @) sequence is executed, or the
power is turned off.
To display download characters the commands Download character definition and Download
character ON/OFF (set to ON) are required.
If a currently-displayed download character is re-defined, there is no affect on the currently-displayed
character. It is effective only for newly input characters.
(5×7 dot)
(7×8 dot)
B7
B7
B6
B6
B5
B5
B4
B4
B3
B3
B2
B2
B1
B1
B0
B0
d1 d2 d3 d4 d5
d1 d2 d3 d4 d5 d6 d7
- 16 -
GU256X64D-7000BX
7.1.13 ESC ? a c
Code:
(Download character delete)
1Bh 3Fh a c
a:
Select character type
c:
Delete Character code
Definable area:
a = 01h
20h ≤ c ≤ FFh
Function: Delete defined download character.
Built-in character is displayed after download character is deleted.
Characters already displayed are not affected.
Command is ignored if download character is not defined for the given character code.
7.1.14 ESC R n (International font set)
Code:
1Bh 52h n
Definable area:
Default:
00h ≤ n ≤ 0Dh
n = 00h
Function: Select international font set.
Characters already displayed are not affected.
n
Font set
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
America
France
Germany
England
Denmark 1
Sweden
Italy
Spain1
Japan
Norway
Denmark2
Spain2
Latin America
Korea
7.1.15 ESC t n (Character table type)
Code:
1Bh 74h n
Definable area:
n = 00h, 01h, 02h, 03h, 04h, 05h, 10h, 11h,
12h, 13h
Default:
n = 00h
Function: Select Character table type.
Characters already displayed are not affected.
7.1.16 US MD1 (Over-write mode)
Code:
1Fh 01h
Function: Display mode set to Over-write mode.
This command has effect for the currently-selected window.
- 17 -
n
Font code type
00h
01h
02h
03h
04h
05h
10h
11h
12h
13h
PC437(USA – Euro std)
Katakana – Japanese
PC850 (Multilingual)
PC860 (Portuguese)
PC863 (Canadian-French)
PC865 (Nordic)
WPC1252
PC866 (Cyrillic #2)
PC852 (Latin 2)
PC858
GU256X64D-7000BX
7.1.17 US MD2 (Vertical scroll mode)
Code:
1Fh 02h
Function: Display mode set to Vertical scroll mode.
This command has effect for the currently-selected window.
7.1.18 US MD3 (Horizontal scroll mode)
Code:
1Fh 03h
Function: Display mode set to Horizontal scroll mode.
This command has effect for the currently-selected window.
7.1.19 US s n
(Horizontal scroll speed)
Code:
1Fh 73h n
Definable area:
00 ≤ n ≤ 1Fh
Default: n = 00h
Function: Set speed for Horizontal scroll mode.
Scroll speed is set by ‘n’.
Subsequent commands are not processed until scroll is completed.
Scroll base time period ‘T’ depends on screen
mode and character size, etc.
7.1.20 US r n
Code:
n
Speed
00h
Instantaneous
01h
T ms / 2 dots
02h – 1Fh
(n−1)×T ms / dot
(Reverse display)
1Fh 72h n
n:
Reverse display ON/OFF
Definable area:
00h ≤ n ≤ 01h
n = 00h: Reverse OFF
n = 01h: Reverse ON
Default: n = 00h
Function: Reverse display ON/OFF for character and image display.
Changing this setting only affects subsequent data. Content already displayed is not affected.
- 18 -
GU256X64D-7000BX
7.1.21 US w n
Code:
(Write mixture display mode)
1Fh 77h n
n:
Display write mode
Definable area:
00h ≤ n ≤ 03h
n = 00h: Normal display write (not mixture display)
n = 01h: OR display write
n = 02h: AND display write
n = 03h: EX-OR display write
Default: n = 00h
Function: Specifies write mixture mode.
Newly-written characters and images are combined with current display contents in Display Memory.
7.1.22 US X n
Code:
(Brightness level setting)
1Fh 58h n
n:
Brightness level setting
Definable area:
00h ≤ n ≤ 08h
Default: n = 08h (Brightness level = 100%)
Function: Set display brightness level.
n: Level
n
01h
02h
03h
04h
05h
06h
07h
08h
Brightness
12.5 %
25.0 %
37.5 %
50.0 %
62.5 %
75.0 %
87.5 %
100 %
7.1.23 US ( a n [parameter]
n
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
Brightness
112.5 %
125.0 %
137.5 %
150.0 %
162.5 %
175.0 %
187.5 %
200 %
(Display action command group)
Function: Execute processing of display action command.
n:
n
Function No.
Function
01h
10h
11h
40h
Function 01h
Function 10h
Function 11h
Function 40h
Wait
Scroll display action
Blink display action
Screen saver
Function code.
Subsequent commands are not processed until display action processing is completed.
7.1.24 US ( a 01h t
Code:
(Wait)
1Fh 28h 61h 01h t
t:
Wait time
Definable area:
00h ≤ t ≤ FFh
Function: Waits for the specified time (command and data processing is stopped).
Wait time = t × approximately 0.5s
- 19 -
GU256X64D-7000BX
7.1.25 US ( a 10h wL wH cL cH s
Code:
(Scroll display action)
1Fh 28h 61h 10h wL wH cL cH s
wL:
Display screen shift byte count, lower byte
wH:
Display screen shift byte count, upper byte
cL:
Number of cycles, lower byte
cH:
Number of cycles, upper byte
s:
Scroll speed
Definable area:
0000h ≤ (wL + wH×100h) ≤ 0FFFh
0001h ≤ (cL + cH×100h) ≤ FFFFh
00h ≤ s ≤ FFh
Function: Shift the display screen.
Horizontal scrolling is possible by specifying as the shift byte count a multiple of (Display screen ‘y’ dot
/8). Display switching is possible by specifying shift byte count as (Display screen ‘x’ dot × Display
screen ‘y’ dot /8). Scroll speed is specified by ‘s’.
Scroll speed: s × 14ms (approximately) / shift
For example: 1 dot scroll to the left: wL=04h, wH=00h
0FF8h
0FF1h
0FF9h
0FF7h
0FFFh
- 20 -
0FF0h
000Fh
07FFh
0009h
0007h
07F9h
0008h
0001h
07F8h
0000h
Display area 256 dots
Hidden area 256 dots
GU256X64D-7000BX
7.1.26 US ( a 11h p t1 t2 c
Code:
(Blink)
1Fh 28h 61h 11h p t1 t2 c
p:
Blink pattern
t1:
Normal display time
t2:
Blank or reverse display time
c:
Number of cycles
Definable area:
00h ≤ p ≤ 02h
p = 00h: Normal display.
p = 01h: Blink display (alternately Normal and Blank display).
p = 02h: Blink display (alternately Normal and Reverse display).
01h ≤ t1 ≤ FFh
01h ≤ t2 ≤ FFh
00h ≤ c ≤ FFh
Function: Blink display action Blink pattern specified by ‘p’.
Time is specified by ‘t1’ and ‘t2’
A: t1 × 14ms (approximately) Normal display
B: t2 × 14ms (approximately) Blank or Reverse display
Repeated ‘c’ times.
This command does not affect Display Memory.
c=00h: Blink continues during subsequent command and data processing, until c=01h–FFh is set, or
Initialize command.
c=01h – FFh: Blink display is repeated 1–255 times while command and data processing is stopped.
After display blinking is completed, Normal display returns and command and data processing
resumes. Command / data processing does not resume until operation is completed.
7.1.27 US ( a 40h p
(Screen saver)
Code:
1Fh 28h 61h 40h p
p:
Screen saver mode
Definable area:
00h ≤ p ≤ 04h
p = 00h: Display power OFF (Power save mode)
p = 01h: Display power ON
p = 02h: All dot OFF
p = 03h: All dot ON
p = 04h: Repeat blink display with normal and Reverse display
(Normal: 2s, Reverse: 2s)
Function: Control Power ON or OFF, and Start Screen saver mode.
p = 00h – 01h: Control Power ON or OFF. This setting is applied until this command is re-specified.
p = 02h – 04h: Start Screen saver mode. This setting is cancelled when next data is input.
- 21 -
GU256X64D-7000BX
7.1.28 US ( f n [parameter]
(Bit image display group)
Function: Display bit image data.
n
Function No.
Function
11h
Function 11h
Real-time bit image display
n:
Function code.
7.1.29 US ( f 11n xL xH yL yH g d(1)...d(k)
(Real-time bit image
display)
Code:
1Fh 28h 66h 11h xL xH yL yH g d(1)...d(k)
xL:
Bit image X size, lower byte (by 1 dot)
xH:
Bit image X size, upper byte (by 1 dot)
yL:
Bit image Y size, lower byte (by 8 dots)
yH:
Bit image Y size, upper byte (by 8 dots)
g:
Image information = 1 (fixed)
d(1)–d(k): Bit Image data (see below)
Definable area:
0001h ≤ (xL + xH×100h) ≤ 0200h
0001h ≤ (yL + yH×100h) ≤ 0008h
g = 01h
k=x×y×g
00h ≤ d ≤ FFh
Function: Display the bit image data at the cursor position in real-time.
Cursor position does not change.
If bit image exceeds the bounds of the current window, only the portion within the currently-selected
window is displayed.
If Display position or display size etc, are outside the definable area, the command is cancelled at the
point where the error is detected, and the remaining data is treated as standard data.
Display memory
Cursor position
x
dy
d(y+1) d(y*2)
d1
y
- 22 -
GU256X64D-7000BX
7.1.30 US ( d n [parameter]
(Dot unit command group)
Function: Dot unit display bit image data or character.
n
Function No.
20h
21h
30h
Function 20h
Function 21h
Function 30h
Function
Dot unit downloaded bit image display
Dot unit real-time bit image display
Dot unit character display
n:
Function code.
Max_Xdot_CurtWin:
Maximum valid X-coordinate value for current window.
Max_Ydot_CurtWin:
Maximum valid Y-coordinate value for current window.
0000h ≤ Max_Xdot_CurtWin ≤ 01FFh *
0007h ≤ Max_Ydot_CurtWin ≤ 003Fh *
* Depends on size of current window.
7.1.31 US ( d 20h xPL xPH yPL yPH m aL aH aE ySL ySH xOL xOH yOL yOH
xL xH yL yH g (Dot unit downloaded bit image display)
Code:
1Fh 28h 64h 20h xPL xPH yPL yPH m aL aH aE ySL ySH xOL xOH yOL
yOH xL xH yL yH g
xPL:
Display position x, lower byte (by 1 dot)
xPH:
Display position x, upper byte (by 1 dot)
yPL:
Display position y, lower byte (by 1 dot)
yPH:
Display position y, upper byte (by 1 dot)
m:
Image data display memory select
aL:
Bit image data definition address, lower byte
aH:
Bit image data definition address, upper byte
aE:
Bit image data definition address, extension byte
ySL:
Bit image defined, Y size, lower byte (by 8 dots)
ySH:
Bit image defined, Y size, upper byte (by 8 dots)
xOL:
Image data offset x, lower byte (by 1 dot)
xOH:
Image data offset x, upper byte (by 1 dot)
yOL:
Image data offset y, lower byte (by 1 dot)
yOH:
Image data offset y, upper byte (by 1 dot)
xL:
Bit image display X size, lower byte (by 1 dot)
xH:
Bit image display X size, upper byte (by 1 dot)
yL:
Bit image display Y size, lower byte (by 1 dot)
yH:
Bit image display Y size, upper byte (by 1 dot)
g:
Image information = 1 (fixed)
Definable area:
0000h ≤ (xPL + xPH×100h) ≤ Max_Xdot_CurtWin
0000h ≤ (yPL + yPH×100h) ≤ Max_Ydot_CurtWin
m = 02h: Display Memory bit image
Display Memory bit image
(aL + aH×100h + aE×10000 h) = 000000h
(ySL + ySH×100h) = 0000h
0000h ≤ (xOL + xOH×100h) ≤ 01FFh
0000h ≤ (yOL + yOH×100h) ≤ 003Fh
0001h ≤ (xL + xH×100h) ≤ 0200h
0001h ≤ (yL + yH×100h) ≤ 0040h
g = 01h
Function: Display the bit image defined in FROM at the specified (x,y) position.
Display position, display size, and image data offset are specified in unit of 1 dot.
If bit image exceeds the bounds of the current window, only the portion within the curre
ntly-selected window is displayed.
If Display position or image size, etc are outside the definable area, the command is
cancelled at the point where the error is detected, and the remaining data is treated as
standard data.
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GU256X64D-7000BX
7.1.32 US ( d 21h xPL xPH yPL yPH xL xH yL yH g d(1)...d(k)
(Dot unit
real-time bit image display)
Code:
1Fh 28h 64h 21h xPL xPH yPL yPH xL xH yL yH g d(1)...d(k)
xPL:
Display position x, lower byte (by 1 dot)
xPH:
Display position x, upper byte (by 1 dot)
yPL:
Display position y, lower byte (by 1 dot)
yPH:
Display position y, upper byte (by 1 dot)
xL:
Bit image display X size, lower byte (by 1 dot)
xH:
Bit image display X size, upper byte (by 1 dot)
yL:
Bit image display Y size, lower byte (by 1 dot)
yH:
Bit image display Y size, upper byte (by 1 dot)
g:
Display information = 1 (fixed)
d(1)–d(k): Bit image data (see below)
Definable area:
0000h ≤ (xPL + xPH×100h) ≤ Max_Xdot_CurtWin
0000h ≤ (yPL + yPH×100h) ≤ Max_Ydot_CurtWin
0001h ≤ (xL + xH×100h) ≤ 0200h
0001h ≤ (yL + yH×100h) ≤ 0040h
g = 01h
00h ≤ d ≤ FFh
Function:
Display the bit image data at the specified (x,y) position in real-time.
Display position and display size are specified in units of 1 dot.
If bit image exceeds the bounds of the current window, only the portion within the
currently-selected window is displayed.
If Display position or display size are outside the definable area, the command is
cancelled at the point where the error is detected, and the remaining data is
treated as standard data.
Example: xP=2, yP=1, Display size x=8, y=14
Image data
b7
d1
d3
d5
d7
d9
d11
d13
d15
d2
d4
d6
d8
d10
d12
d14
d16
b6
b5
b4
b3
b2
b1
b0
b7
b6
b5
b4
b3
b2
b1
b0
- 24 -
GU256X64D-7000BX
Display Memory
x=8
xP
0
1
2
3
4
5
6
7
8
9
d1
d3
d5
d7
d9
d11
d13
d15
d2
d4
d6
d8
d10
d12
d14
d16
0
yP
1
2
3
4
5
6
y=14
7
8
9
10
11
12
13
14
15
- 25 -
10
11
GU256X64D-7000BX
7.1.33 US ( d 30h xPL xPH yPL yPH m bLen d(1)...d(bLen)
(Dot unit
character display)
Code:
1Fh 28h 64h 30h xPL xPH yPL yPH m bLen d(1)...d(bLen)
xPL:
Display position x, lower byte (by 1 dot)
xPH:
Display position x, upper byte (by 1 dot)
yPL:
Display position y, lower byte (by 1 dot)
yPH:
Display position y, upper byte (by 1 dot)
m:
bLen:
Character data length
d(1)–d(bLen):
Character data / reverse select
Definable area:
0000h ≤ (xPL + xPH×100h) ≤ Max_Xdot_CurtWin, FFFFh
0000h ≤ (yPL + yPH×100h) ≤ Max_Ydot_CurtWin
m = 00h
01h ≤ bLen ≤ FFh
00h ≤ d ≤ FFh
d=10h: Reverse OFF
d=11h: Reverse ON
Function: Display the specified text characters at the specified (x,y) position.
Display position is specified in units of 1 dot.
For display position xP=FFFFh, write position continues from previous writes done using
this command.
The current settings for character size and table type, etc are used.
Character magnification and bold settings are not used.
If character display exceeds the bounds of the current window, only the portion within the
currently-selected window is displayed.
If Display position is outside the definable area, the command is cancelled at the point
where the error is detected, and the remaining data is treated as standard data.
Example: Display position xP=2, yP=3, 6×8 dot character “AB”
Display Memory
xP
0
1
2
3
4
5
6
7
0
1
2
yP
3
4
5
6
7
8
9
10
11
- 26 -
8
9
10
11
12
13
GU256X64D-7000BX
7.1.34 US ( g n [parameter]
(Font command group)
Function: Font Width and Font Magnification settings.
n:
n
Function No.
Function
03h
40h
Function 03h
Function 40h
Font Width
Font Magnification
Function code.
7.1.35 US ( g 03h w
(Font Width)
Code:
1Fh 28h 67h 03h w
w:
Font width setting
Definable area:
00h ≤ w ≤ 03h
w = 00h: Fixed character width 1 (1 dot space on right side)
w = 01h: Fixed character width 2 (1 dot space on right side and left side)
w = 02h: Proportional character width 1 (1 dot space on right side)
w = 03h: Proportional character width 2 (1 dot space on right side and left side)
Default: w = 01h
Function: Sets the character width.
Fixed character width 1 & 2: Character is written with fixed character width (6 or 7 dot).
Proportional character width: Character is written with proportioned character width.
7.1.36 US ( g 40h x y
(Font Magnification)
Code:
1Fh 28h 67h 40h x y
x:
X magnification factor
y:
Y magnification factor
Definable area:
01h ≤ x ≤ 04h
01h ≤ y ≤ 02h
Default: x = 01h
y = 01h
Function: Set character magnification ‘x’ times to the right and ‘y’ times downward.
Character magnification includes the space specified by Font Width command.
- 27 -
GU256X64D-7000BX
(x=1, y=1)
(x=2, y=2)
7.1.37 US ( w n [parameter]
(Window command group)
Function: Window / screen commands
n
Function No.
Function
01h
Function 01h
Current window select
02h
Function 02h
User-Window definition and cancel
10h
Function 10h
Write screen mode select
n:
Function code.
7.1.38 US ( w 01h a
(Window select)
Code:
a:
1Fh 28h 77h 01h a
Window number
a = 00h:
Base-Window
a = 01h – 04h:
User-Window
Definable area:
00h ≤ a ≤ 04h
Function: Select current window.
Command is ignored if Window number is for a User-Window that is not defined.
- 28 -
GU256X64D-7000BX
7.1.39 US ( w 02h a b[xPL xPH yPL yPH xSL xSH ySL ySH]
(User Window define / cancel)
Code:
1Fh 28h 77h 02h a b [xPL xPH yPL yPH xSL xSH ySL ySH]
a:
Definable window No.
No. 1 – 4
b:
Define or Cancel
b = 00h: Cancel, b = 01h: Define
xPL:
Left position of window x, lower byte (by 1 dot)
xPH:
Left position of window x, upper byte (by 1 dot)
yPL:
Top position of window y, lower byte (by 8 dot)
yPH:
Top position of window y, upper byte (by 8 dot)
xSL:
X size of window, lower byte (by 1 dot)
xSH:
X size of window, upper byte (by 1 dot)
ySL:
Y size of window, lower byte (by 8 dot)
ySH:
Y size of window, upper byte (by 8 dot)
Definable area:
01h ≤ a ≤ 04h
00h ≤ b ≤ 01h
0000h ≤ (xPL + xPH×100h) ≤ 01FFh
0000h ≤ (yPL + yPH×100h) ≤ 0007h
0001h ≤ (xSL + xSH×100h) ≤ (0200h − (xPL + xPH×100h))
0001h ≤ (ySL + ySH×100h) ≤ (0008h − (yPL + yPH×100h))
Function: Define or cancel User-Window
Display contents are not changed by this command.
User-Window definition (b = 01h):
Specify User-Window number, window position, and window size. Window position and Window size
are specified in units of one block (1×8 dot).
xP
xS
yP
64
dots
yS
All Display memory 512 dots
Up to 4 User-Windows can be defined.
The cursor position for the window is initialized to top left (X=0, Y=0) when the window is re-defined.
User-Window cancel (b = 00h):
For User-Window cancel, window range parameters [xPL – ySH] are not used.
If the currently-selected window is cancelled, the Base-Window becomes the currently-selected
window.
If any of ‘a’, ‘b’, ‘xP’, ‘yP’, ‘xS’, or ‘yS’ are outside the definable area, the command is cancelled at that
point and the following data is treated as standard data.
- 29 -
GU256X64D-7000BX
7.1.40 US ( w 10h a
(Write screen mode select)
Code:
a:
1Fh 28h 77h 10h a
Write screen mode
a = 00h: Display screen mode
a = 01h: All screen mode
Definable area:
00h ≤ a ≤ 01h
Default: a = 00h
Function: Select the write screen mode. This setting is only applicable for Base-Window.
Display screen mode: Display action is valid within area of either Display area or Hidden area,
depending on cursor position.
All screen mode: Display action is valid over the entire display memory.
For details, refer to 6.4 Write screen mode.
7.1.41 WINx
(Window select shortcut)
Function: Select current window (1-byte command).
Refer to 7.1.38 for more detail.
WINx
WIN0 (10h)
WIN1 (11h)
WIN2 (12h)
WIN3 (13h)
WIN4 (14h)
Function
Select Base-Window
Select User-Window 1
Select User-Window 2
Select User-Window 3
Select User-Window 4
- 30 -
GU256X64D-7000BX
7.2
Bit image data format
The Bit image consists of the data for image size (x × y) as follows;
B7
B6
Data
d (1)
d (2)
Pattern position
P1
P2
d (x × y)
P( x × y )
P1
P2
B5
B4
P(x×y -1)
P(x×y)
Py
B3
B2
B1
B0
- 31 -
GU256X64D-7000BX
8
Setup
8.1
Jumper
No.
J0
J1
J2
J3
JRB
Function
Default
Baud Rate select
Reserved (do not change)
Parallel interface through-holes
Pin #3 signal setting
OPEN
OPEN
OPEN
OPEN
OPEN
GU256X64D-7000BX
GU128X64F-7000
BX
Note: J2 and J3 are for factory use only.
8.1.1
8.1.2
Baud rate setting (for serial interface)
J0
J1
Baud rate
OPEN
OPEN
38,400bps
SHORT
OPEN
19,200bps
OPEN
SHORT
9,600bps
SHORT
SHORT
115,200bps
Parallel interface through-holes Pin #3 signal setting
JRB
Signal of Pin#3
OPEN
NC
C-R SHORT
/RESET (Input)
C-B SHORT
R-C-B SHORT
PBUSY (Output)
Do not use.
/RESET Input
R
Pin #3
C
B
PBUSY Output
JRB
- 32 -
GU256X64D-7000BX
9
Connector
9.1
Parallel interface 14 through-holes (CN3)
Pin
No.
Signal
name
1
3
5
7
9
11
13
GND
NC *1
/WR
D0
D2
D4
D6
Function
Direction
Pin
No.
Signal name
Function
Direction
Input
Input
Input
Input
Input
Input
2
4
6
8
10
12
14
VCC
RS *2
/RD
D1
D3
D5
D7(PBUSY)
Power supply
Switch signal
Data read
Data input
Data input
Data input
Data input
Input
Input
Input
Input
Input
Input
Input/output
Ground
No connection
Data write
Data input
Data input
Data input
Data input
* 1: Pin #3 can be changed to /RESET or PBUSY terminal, selected by jumper.
* 2: Factory use only.
9.2
9.3
Serial interface 7 through-holes (CN1)
Pin No.
Signal name
Function
Direction
1
2
3
4
5
6
7
VCC
SIN
GND
SBUSY
NC
/RESET
NC
Power supply
Data receive
Ground
Display busy
No connection
Reset
No connection
Input
Input
Input
Output
Input
-
3pin connector (CN2)
A three pin connector (CN2) on the board is factory use only, and may be removed in future.
10
Firmware Version Notation
The firmware version is written in the following position.
Parts Side
GU256X64D-7000BX xxxxxxx Fnnn
Part Number
Date Code
- 33 -
Firmware
GU256X64D-7000BX
Outline Drawing
DS-1942-0100-00
11
- 34 -
GU256X64D-7000BX
Notice for the Cautious Handling of VFD Modules
Handling and Usage Precautions:
Please carefully follow the appropriate product application notes and operation standards for proper usage, safe handling, and
maximum performance.
[VFD tubes are made of glass]
The edges of the VFD glass envelope are not smooth, so it is necessary to handle carefully to avoid injuries to hands.
Use caution to avoid breaking the VFD glass envelope, to prevent injury from sharp glass particles.
The tip of the exhaust pipe is fragile so avoid shock from impact.
It is recommended to allow sufficient open space surrounding the exhaust pipe to avoid possible damage.
Please design the PCB for the VFD module within 0.3 mm warping tolerance to avoid any forces that may damage the
display due to PCB distortion causing a breakdown of the electrical circuit leading to VFD failure.
[High voltage]
Avoid touching conductive electrical parts, because the VFD module uses high voltage exceeding 30 – 100 volts.
Even when electric power is turned off, it may take more than one minute for the electrical current to discharge.
[Cable connection]
Do not unplug the power and/or data cables of VFD modules during operation, because unrecoverable damage may
result.
Sending input signals to the VFD module when not powered can cause I/O port damage.
It is recommended to use a 30cm or shorter signal cable to prevent functional failures.
[Electrostatic charge]
VFD modules need electrostatic-free packaging and protection from electrostatic charges during handling and usage.
[Structure]
During operation, VFD and VFD modules generate heat. Please consider sufficient heat radiation dissipation using heat
sink solutions.
Preferably, use UL-grade materials or components in conjunction with VFD modules.
Warp and twist movement causes stress and may break VFDs and VFD modules. Please adhere to allowances within
0.3mm at the point of attachment.
[Power]
Apply regulated power to the VFD module within specified voltages to protect from failures.
VFD modules may draw in-rush current exceeding twice the typical current at power-on, so a power supply with sufficient
capacity and quick starting of the power regulator is recommended.
VFD module needs a specified voltage at the point of connection. Please use an adequate power cable to avoid a
decrease in voltage. As a safety measure, a fuse or other over-current protection is recommended.
[Operating consideration]
Illuminating phosphor will decrease in brightness during extended operation. If a fixed pattern illuminates for an
extended period (several hours), the phosphor efficiency will decrease compared to the non-operating phosphor,
causing non-uniform brightness. Please consider programming the display patterns to use all phosphor segments
evenly. Scrolling may be a consideration for a period of time to refresh the phosphor condition and improve even
illumination of the pixels.
A signal cable 30cm or less is recommended to avoid possible disturbances to the signal.
[Storage and operating environment]
Please use VFD modules under the recommended specified environmental conditions. Salty, sulfuric and dusty
environments may damage the VFD module even during storage.
[Disposal]
VFD uses lead-containing materials (RoHS directive exempts these lead compounds in the glass for electronic devices).
When discarding VFDs or VFD modules, please adhere to applicable laws and regulations.
[Other cautions]
Although the VFD module is designed to be protected from electrical noise, please plan your circuitry to exclude as much
noise as possible.
Do not reconstruct or repair the VFD module without our authorization. We cannot assure the quality or reliability of
unauthorized reconstructed VFD modules.
Notice:
We do not authorize the use of any patents that may be inherent in these specifications.
Neither whole nor partial copying of these specifications is permitted without our approval. If necessary, please ask for
assistance from our sales consultant.
This product is not designed for military, aerospace, medical or other life-critical applications. If you choose to use this
product for these applications, please ask us for prior consultation or we cannot accept responsibility for problems that
may occur.
MBBZ-009-S18A
- 35 -
GU256X64D-7000BX
Revision Note
Specification No.
Date
DS-1942-0001-00
Apr. 11, 2016
Revision
Initial issue
- 36 -
工商网监
湘ICP备2023018690号
