ETC CU20027-Y1A

RoHS 2002/95/EC
Vacuum Fluorescent Display
Module
Specification
Model: CU20027-Y1A
Specification No:
DS-1557-0001-01
Date of Issue:
December 5 2008 (00)
Revision:
December 17 2008 (01)
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 2002/95/EC
CU20027-Y1A
Index.
1
General Description ................................................................................................................................3
1.1
Scope ...............................................................................................................................................3
1.2
Features...........................................................................................................................................3
1.3
Hardware Configuration ................................................................................................................4
1.3.1
Block Diagram ..........................................................................................................................4
2 Electrical Specification...........................................................................................................................4
3
4
5
6
7
2.1
Absolute Maximum Ratings ..........................................................................................................4
2.2
Electrical Ratings............................................................................................................................4
2.3
Electrical Characteristics...............................................................................................................5
Optical Specifications.............................................................................................................................5
Environmental Specifications...............................................................................................................6
Physical Specifications ..........................................................................................................................6
Applicable Specifications ......................................................................................................................6
Interface......................................................................................................................................................6
7.1
7.1.1
7.1.2
7.1.3
Parallel Interface.............................................................................................................................7
Basic Operation.........................................................................................................................7
Flowchart ..................................................................................................................................7
Interface Timing........................................................................................................................8
7.2
Serial Interface................................................................................................................................9
7.2.1
Basic Operation.........................................................................................................................9
7.2.2
Flowchart ..................................................................................................................................9
7.2.3
Asynchronous Serial Interface Timing.................................................................................... 10
7.2.3.1 Data write .............................................................................................................................. 10
7.2.3.2 Data read............................................................................................................................... 10
7.2.4
Synchronous Serial Interface Timing...................................................................................... 11
8
7.3
Reset Timing ................................................................................................................................. 11
Jumper Setting ....................................................................................................................................... 12
8.1
Jumper location ............................................................................................................................ 12
8.1.1
Baud Rate Setting (for Asynchronous Serial Interface only).................................................. 12
8.1.2
Serial Synchronous / Asynchronous Interface Select.............................................................. 12
8.1.3
Test Mode................................................................................................................................ 12
9 Operating Mode ...................................................................................................................................... 13
9.1
Direct Command Mode ............................................................................................................... 13
9.2
User Set up Mode ........................................................................................................................ 13
9.3
Serial OUT Mode.......................................................................................................................... 13
9.4
10
11
12
13
Test mode ...................................................................................................................................... 13
Font Table Configuration ................................................................................................................. 14
Display Area-End of Line Behavior ............................................................................................... 15
Initial setting........................................................................................................................................ 16
Commands........................................................................................................................................... 16
13.1
Command Configuration ............................................................................................................. 16
13.2
Command Set............................................................................................................................... 17
13.3
Detail of Command Set ............................................................................................................... 18
13.3.1
Character display .................................................................................................................... 18
13.3.2
Back Space.............................................................................................................................. 19
13.3.3
Horizontal Tab......................................................................................................................... 19
13.3.4
Line Feed ................................................................................................................................ 20
-1-
CU20027-Y1A
13.3.5
Home Position......................................................................................................................... 20
13.3.6
Display Clear .......................................................................................................................... 21
13.3.7
Carriage Return....................................................................................................................... 21
13.3.8
Underline cursor mode............................................................................................................ 21
13.3.9
Cursor off mode ...................................................................................................................... 21
13.3.10
Block cursor mode .................................................................................................................. 21
13.3.11
Underline cursor blink mode................................................................................................... 21
13.3.12
Cursor set ................................................................................................................................ 21
13.3.13
Initialize display...................................................................................................................... 22
13.3.14
RAM user font ........................................................................................................................ 22
13.3.15
Define RAM user font............................................................................................................. 23
13.3.16
Delete RAM user font ............................................................................................................. 24
13.3.17
Character blink mode OFF...................................................................................................... 24
13.3.18
Character blink mode ON ....................................................................................................... 24
13.3.19
Specify quick write mode ....................................................................................................... 24
13.3.20
Specify International font set .................................................................................................. 25
13.3.21
Specify flickerless write mode ................................................................................................ 25
13.3.22
Blink speed control ................................................................................................................. 26
13.3.23
Underline display mode ON ................................................................................................... 26
13.3.24
Underline display mode OFF.................................................................................................. 26
Insert character........................................................................................................................ 26
13.3.25
13.3.26
Delete character ...................................................................................................................... 27
13.3.27
Insert line ................................................................................................................................ 27
13.3.28
Delete line ............................................................................................................................... 27
13.3.29
Reset........................................................................................................................................ 27
13.3.30
Specify character code type .................................................................................................... 27
13.3.31
Over-write mode ..................................................................................................................... 28
13.3.32
Vertical scroll mode ................................................................................................................ 28
13.3.33
Horizontal scroll mode............................................................................................................ 28
13.3.34
Horizontal scroll speed............................................................................................................ 28
13.3.35
Brightness level setting ........................................................................................................... 28
13.3.36
Wait ......................................................................................................................................... 29
13.3.37
Display blink........................................................................................................................... 29
13.3.38
Screen saver ............................................................................................................................ 30
13.3.39
User set up mode start............................................................................................................. 30
13.3.40
User set up mode end .............................................................................................................. 30
13.3.41
Define FROM user font .......................................................................................................... 31
13.3.42
Read Status information.......................................................................................................... 32
13.3.43
Display Status information...................................................................................................... 32
13.3.44
Serial OUT mode start ............................................................................................................ 32
13.3.45
Serial OUT mode end ............................................................................................................. 33
13.3.46
Select / Deselect 5×8 Matrix font ........................................................................................... 33
13.3.47
Select/Deselect Alternative Magnified Font ........................................................................... 34
13.3.48
Font Magnification.................................................................................................................. 35
13.3.49
Individual Character Brightness Level Setting ....................................................................... 36
14
Pin Configuration ............................................................................................................................... 37
14.1
Parallel interface connecter (Fourteen through-holes / CN1)................................................ 37
14.2
Serial interface connector (Six through-holes / CN3) ............................................................. 37
14.2.1
Case of Asynchronous serial interface is selected................................................................... 37
14.2.2
Case of Synchronous serial interface is selected..................................................................... 37
15
Firmware Version Notation .............................................................................................................. 37
16
Physical Dimensions......................................................................................................................... 38
Notice for the Cautious Handling VFD Modules .................................................................................... 39
Revision Note.................................................................................................................................................. 40
-2-
CU20027-Y1A
1
General Description
1.1
Scope
This specification covers the operation and operating requirements of the Vacuum Fluorescent
Display (VFD) module CU20027-Y1A.
1.2
Features
•
•
•
•
•
Functions
o Character highlight
o Easy to use ASCII commands and fonts.
o Character Magnification
o Screen Saver
o Blink Action Command(Display or Character)
Display
o Vivid green indication
o Wider viewing angle
o High Brightness (Typ. 2000 cd/m2)
o Brightness Levels: 8 levels of overall display brightness with 8 relative levels for each
individual 5×8 Matrix
Font
o New 5×8 Matrix Character Font
o Many International Font Sets
o RAM User-Definable Characters (16 characters)
o FROM User-Definable Characters (224 characters)
o 40 (20×2) Characters on the compact display area
Interface
o C MOS Signal level
o Parallel Interface: i80 type 8bit bus
o Serial Interface: either Synchronous or Asynchronous is selected by jumper setting
Operation
o DC 5V input
o Wide Operation Temperature Range (−40 ~ +85ºC)
-3-
CU20027-Y1A
1.3
Hardware Configuration
The module consists of:
20 x 2 character Display (VFD)
Refresh RAM
Character generator
DC/DC converter (Supply all necessary power for VFD)
Display controller
All necessary control logic circuits
1.3.1 Block Diagram
Parallel IF
Parallel IF
VFD
Controller
Circuit
Firmware
Character font
Serial IF
Serial IF
Flash-Memory
Circuit
(User font table)
Jumper
Swiitch
VCC
DC/DC
VDD2
Converter
EF1
GND
is approximately 10,000 times.
EF2
2
Electrical Specification
2.1
Absolute Maximum Ratings
2.2
Note: Flash memory re-write rating
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power Supply Voltage
VCC
−0.3
-
+6.0
VDC
Logic Supply Voltage
D0-D7, /WR, SIN, SCK, /RESET
VIN
−0.3
-
VCC+0.3
VDC
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power Supply Voltage
VCC
4.75
5.0
5.25
VDC
Electrical Ratings
-4-
CU20027-Y1A
2.3
Electrical Characteristics
Measuring Conditions: Ambient temperature = 25 ºC, VCC = 5.0 VDC
Parameter
‘L’ Level
Logic Input Current
Symbol
Min.
Typ.
Max.
Unit
Condition
D0-D7, /WR,
/RESET
IIL1
-
-
−0.15
mA
VIN = 0V
-
SIN, SCK
IIL2
-
-
−0.55
mA
VIN = 0V
-
IIH1
-
-
5.0
µA
VIN = 5V
-
IIH2
-
-
0.25
µA
VIN = 5V
-
D0-D7, /WR,
SIN, SCK
VIL1
0
-
0.2×VCC
VDC
-
-
/RESET
VIL2
0
-
0.8
VDC
-
-
D0-D7, /WR,
/RESET,
SIN, SCK
VIH
0.8×VCC
-
VCC
VDC
-
-
PBUSY
VOL1
-
-
0.1
VDC
IOL = 50µA
-
SBUSY
VOL2
-
-
0.45
VDC
IOL = 200µA
-
PBUSY
VOH1 VCC−0.1
-
-
VDC
IOH = −50µA
-
SBUSY
VOH2 VCC−0.5
-
VCC
VDC
IOH = −200µA
-
D0-D7,SIN,SCK
‘H’ Level
Logic Input Current
/WR, /RESET
‘L’ Level
Logic Input Voltage
‘H’ Level
Logic Input Voltage
‘L’ Level
Logic Output Voltage
‘H’ Level
Logic Output Voltage
Power Supply Current
ICC1-1
-
240
300
mADC
ICC2-1
-
200
250
mADC
ICC1-2
-
320
400
mADC
ICC2-2
-
250
310
mADC
ICC3
-
25
35
mADC
-
1.2
1.5
W
-
1.6
2.0
W
Power Consumption
Brightness
100%
Brightness
100%
Brightness
200%
Brightness
200%
Power Save
Mode
Brightness
100%
Brightness
200%
Note
(1)
(2)
(1)
(2)
(3)
(1)
(1)
(1) ICC1 shows the current when all dots in the display are on.
(2) ICC2 shows the current when all dots in the display are off.
(3) ICC3 shows the current with the Power Save Mode. Power save mode is one of the options of
“Screen saver” command. Please refer to “Screen saver” command at Page 30.
Note: A slow start power supply may cause erroneous operations. ICC can be
approximately twice the specified supply current at power on.
3
Optical Specifications
Luminance:
Color of illumination:
Minimum 350 cd/m2, typically 1000 cd/m2 (100% brightness)
Typically 2000 cd/m2 (200% brightness)
Green (Blue Green)
-5-
CU20027-Y1A
4
Environmental Specifications
Operating temperature:
Storage temperature:
Operating humidity:
Storage humidity:
Vibration:
Shock:
5
Physical Specifications
Number of characters:
Matrix format:
Display area:
Character size:
Character pitch:
Line pitch:
Dot size:
Dot pitch:
Weight:
6
−40 to +85 ºC
−40 to +85 ºC
20 to 80 % R.H (non-condensing)
20 to 80 % R.H (non-condensing)
10-55-10Hz, all amplitude 1mm, 30 minutes, X-Y-Z (non-operating)
392m/s2 (40G) 9ms X-Y-Z, 3 times each direction (non-operating)
40（20 characters x 2 lines）
5 × 8 dots
73.4 x 15.0 mm (X × Y)
2.72 x 7.19 mm (X × Y)
3.72 mm
7.81 mm
0.44 x 0.785 mm (X × Y)
0.57 x 0.915 mm (X × Y)
Approximately 48 g
Applicable Specifications
Applicable reliability spec:
Applicable production spec:
7
TT-99-3102
TT-98-3413
Interface
C MOS Signal level
Parallel Interface: i80 type 8bit bus
Serial Interface: Either Synchronous or Asynchronous is selected by jumper setting.
The module cannot receive both serial and parallel data at the same time.
8 bit Parallel Interface
Asynchronous Serial Interface
8bit DATA
Host
System
WR
PBUSY
Synchronous Serial Interface
SIN
Y series
Display
Module
Host
System
SBUSY
SIN
Y series
Display
Module
Host
System
SCK
SBUSY
Y series
Display
Module
Monitoring the busy line is strongly recommended, because it prevents data loss and
minimizes a waiting time to write next data.
-6-
CU20027-Y1A
7.1
Parallel Interface
7.1.1 Basic Operation
Data (D0-D7) has to be set prior to a rising edge of /WR line, and the data is clocked in on the
rising edge of /WR line.
During data execution, the parallel busy line is high (PBUSY=1).
Writing data when PBUSY = 1 causes data loss, so please write data when PBUSY = 0.
7.1.2 Flowchart
Start to send data
PBUSY = 0?
NO
YES
/WR = 0
Set D0-D7
/WR = 1
Wait (Min. 20uS)
Continue to
send data ?
NO
YES
End
-7-
CU20027-Y1A
7.1.3 Interface Timing
Min.
100ns
1
/WR
0
Min.
50ns
Min.
20000ns
1
D0-D7
0
Max.
40ns
Min.
0ns
1
PBUSY
0
Note: Monitoring the parallel busy line (PBUSY) is strongly recommended, because it
prevents data loss and minimizes a waiting time to write next data. Please write data when
PBUSY = 0.
-8-
CU20027-Y1A
7.2
Serial Interface
7.2.1 Basic Operation
Default setting: Asynchronous Serial Interface (Baud rate = 38,400bps)
Either Synchronous or Asynchronous Serial Interface is selectable by jumper setting. Refer to
“8 Jumper Setting” at page 12.
The capacity of the receiving buffer is 64 bytes. The relationship between SBUSY and the
receiving buffer is as follows;
Remaining space of receiving buffer
SBUSY 0 -> 1
SBUSY 1 -> 0
16 byte or less
24 byte or more
Writing data when SBUSY = 1 may cause data loss, so please write data when SBUSY = 0.
7.2.2 Flowchart
Start to send data
NO
SBUSY = 0?
YES
Send one byte data
Wait (Min. 17us)
Note: Synchronus
mode only
Continue to
send data ?
YES
-9-
NO
End
CU20027-Y1A
7.2.3 Asynchronous Serial Interface Timing
7.2.3.1 Data write
1
SIN
0
Max.
30μs
Min.
0μs
1
SBUSY
0
Protocol:
9,600 ～ 115,200bps
(Selectable by Jumper)
Default: 38,400bps
None
Start (1bit)＋Data (8bit)＋Stop (1bit)
SBUSY
Baud rate
Parity
Format
Handshake
Note: Monitoring the serial busy line (SBUSY) is strongly recommended, because it
prevents data loss and minimizes a waiting time to write next data. Please write data when
SBUSY = 0.
7.2.3.2
Data read
This is used for Read states information command only.
1
SIN
0
Min.
20μs
Min.
0μs
Min.
0μs
1
SOUT
0
Protocol:
Baud rate
Parity
Format
Handshake
9,600 ～ 115,200bps
(Selectable by Jumper)
Default: 38,400bps
None
Start (1bit)＋Data (8bit)＋Stop (1bit)
None
Note: Output data is transferred collectively from a VFD module, so a receiving buffer may
be required on a host system to prevent data loss.
- 10 -
CU20027-Y1A
7.2.4 Synchronous Serial Interface Timing
SIN
D0 D1 D2 D3 D4 D5 D6 D7
Min.
50ns
D0 D1 D2 D3 D4 D5 D6 D7
D0 D1 D2 D3 D4 D5 D6 D7
D0
Min.
90ns
1
SCK
0
Min.
100ns
Min.
100ns
Min.
200ns
Min.
17μs
Max.
30μs
Min.
0μs
1
SBUSY
0
Note: Monitoring the serial busy line (SBUSY) is strongly recommended, because it
prevents data loss and minimizes a waiting time to write next data. Please write data when
SBUSY = 0.
7.3
Reset Timing
Reset pulse (active low) should be longer than 1ms.
The module sets the SBUSY/PBUSY line upon receipt of Reset signal and clears the line when
ready to receive data.
Min.
1ms
/RESET
Max.
100ms
PBUSY
SBUSY
Min.
0μs
SIN
Min.
0μs
/WR
- 11 -
CU20027-Y1A
8
Jumper Setting
8.1
Jumper location
Components side
J2
J1
J0
BT*
JT
CN1
CN3
Note: Jumper “BT” is for factory use only. Please do not change.
8.1.1 Baud Rate Setting (for Asynchronous Serial Interface only)
Baud Rate
J0
J1
OPEN
OPEN
19,200bps
SHORT
OEPN
9,600bps
OPEN
SHORT
SHORT
SHORT
38,400bps (Default)
115,200bps
8.1.2 Serial Synchronous / Asynchronous Interface Select
I/F
J2
Asynchronous serial I/F
(Default)
OPEN
Synchronous serial I/F
SHORT
8.1.3 Test Mode
Refer to “9.4 Test mode”.
Mode
Direct Command
Mode (Default)
Test Mode
- 12 -
JT
OPEN
SHORT
CU20027-Y1A
9
Operating Mode
This module has the following operating modes which are selectable by commands or jumper
setting.
Power
ON
OPEN
JT
Initial
State
Direct Commnad
Mode
SHORT
NO
Asynchronous Serial
Interface
YES
Test Mode
9.1
Serial OUT Mode
User Set up Mode
Direct Command Mode
The module accepts data and all commands except “13.3.40 User setup mode end”, “13.3.41
Define FROM user font”, “13.3.42 Read status information”, “13.3.43 Display status information”,
and “13.3.45 Serial OUT mode end”.
9.2
User Set up Mode
Under this mode, an on-board flash memory is accessible.
The module accepts only three commands: “13.3.40 User set up mode end“, “13.3.41 Define
FROM user font” and “13.3.43 Display status information”.
9.3
Serial OUT Mode
Under this mode, status information is readable via Asynchronous Serial Interface.
The module accepts only two commands: “13.3.42 Read status information” and “13.3.45 Serial
OUT mode end”.
9.4
Test mode
The module does not accept any commands but displays test-patterns. Test purpose only.
- 13 -
CU20027-Y1A
10
Font Table Configuration
This display's Font Table (20h-FFh) is configured as follows. The configuration can be changed
by command.
The Font Table used in the default state is as follows.
13.3.20 Specify International font set
13.3.30 Specify character code type
1Bh 52h n
1Bh 74h n
For font pattern details, refer to font spec. DS-1519-0002-xx.
- 14 -
CU20027-Y1A
11
Display Area-End of Line Behavior
In most cases, a cursor moves to the next position after a character is displayed on the current cursor
position, but some exceptional cases exist. At end of line, the next behavior of a display area depends
on the current cursor position, character size and display mode.
Display area behaviors for some magnified character sizes are as follows:
Regular size (1×1) characters (Over-write mode)
Right Most Column
Lower Most Row
Current Cursor Position
The next cursor position is here.
Right Most Column
1×2 Magnified characters (Over-write mode)
Lower Most Row
Current Cursor Position
The next cursor position is here.
2×2 Maginified characters (Over-write mode)
Right Most Column
Lower Most Row
The next cursor position is here.
Current Cursor Position
2×2 Maginified characters (Over-write mode)
Right Most Column
Dead Space
Lower Most Row
The next cursor position is here.
The next 2×2 magnified character is displayed here.
Current Cursor Position
It is possible to display a regular size (1×1) characrer in the dead space.
- 15 -
CU20027-Y1A
12
Initial setting
Initial states are set as follows.
Power on
Cursor position
RAM user font
Cursor display
Display mode
Write mode
International font set
Character code type
Character blink mode
Underline display mode
Individual Character
Brightness Level Setting
Brightness level
Blink speed
Horizontal scroll speed
RAM User font data
Blink display action
(at c=00h)
Select/Deselect 5×8 Matrix
font
Select/Deselect Alternative
Magnified Font
Font Magnification
Baud rate (J0, J1)
Serial interface (J2)
Test mode (JT)
13
External reset or
"Reset"
command
Home position
Disable
Underline cursor
Over-write mode
Quick write mode
America
PC437(USA – Euro std)
Character blink mode OFF
Underline display mode OFF
“Initialize display”
command
Level 8 (100%)
100%
40h
Instantaneous (n=00h)
Cleared
Stopped
－
5×8 Matrix font
Normal font
x=1, y=1
Not re-loaded
Re-loaded
Not re-loaded
Re-loaded
Not re-loaded
Re-loaded
Re-loaded
Re-loaded
Re-loaded
Commands
This display's command is configured as following group.
13.1
"User set up
mode end"
command
Command Configuration
08H-16H
1BH ...
1FH ...
― 1FH 28H 61H ...
― 1FH 28H 65H ...
― 1FH 28H 67H ...
20H-FFH
Control command
ESC command
User Setup command
― Action command
― Operation mode-related command
― Character-related command
Character code
- 16 -
Re-loaded
Re-loaded
Re-loaded
CU20027-Y1A
13.2
Command Set
Command Name
Hex Code
BYTE4 Parameter
BYTE1
BYTE2
BYTE3
08h
09h
0Ah
0Bh
0Ch
0Dh
13h
14h
15h
16h
－
－
－
－
－
－
－
－
－
－
25h
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
Define RAM user font
26h
01h
－
Delete RAM user font
Initialize display
Character blink mode OFF
Character blink mode ON
Specify quick write mode
Specify International font set
Specify flickerless write mode
Blink speed control
Underline display mode ON
Underline display mode OFF
Insert character
Delete character
Insert line
Delete line
Reset
Specify character code type
Over-write mode
Vertical scroll mode
Horizontal scroll mode
Cursor set
Wait
Display blink
Screen saver
User set up mode start
User set up mode end
Define FROM user font
Read Status information
Display Status information
Serial OUT mode start
Serial OUT mode end
Select / Deselect 5×8 Matrix font
Select/Deselect Alternative
Magnified Font
Font Magnification
Individual Character Brightness
Level Setting
Brightness level setting
Horizontal scroll speed
Character display
3Fh
40h
41h
42h
45h
52h
53h
54h
55h
57h
01h
－
－
－
－
－
－
－
－
－
F3h
F4h
F5h
F6h
FFh
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
01h
11h
40h
01h
02h
14h
40h
41h
83h
84h
04h
06h
－
－
－
－
－
－
－
－
－
－
n
c1 c2
[x1 d1…d(a X x1)]…
[xk d1…d(a X xk)]
c
－
－
－
－
n
－
s
－
－
－
－
－
－
－
n
－
－
－
xL 00h yL 00h
t
p t1 t2 c
p
d1 d2
d1 d2 d3
P(20h-1) P(20h-2)...P(FFh-5)
a [b c d e]
a
d1 d2
d1 d2 d3
d
s
40h
50h
xy
d1 d2 d3
－
－
－
n
n
－
Back Space
Horizontal Tab
Line Feed
Home Position
Display Clear
Carriage Return
Underline cursor mode
Cursor off mode
Block cursor mode
Underline cursor blink mode
RAM user font
1Bh
58h
74h
01h
02h
03h
24h
61h
65h
1Fh
28h
67h
20-FFh
58h
73h
－
- 17 -
－
－
－
CU20027-Y1A
13.3
Detail of Command Set
13.3.1 Character display
Code:
20h – FFh
Please refer to “11 Display Area-End of Line Behavior” before reading.
Function: Display a character on the current cursor position. The details of operation are as follows:
When “Over-write mode” is selected.
Current cursor position
X position (Column)
Y position (Row)
Excluding right most column
−
Excluding lower most row
Right most column
Lower most row
Operations
1.
2.
1.
2.
Display a character on the current cursor position.
Increment the cursor to the right by one column.
Display a character on the current cursor position.
Move the cursor to left most column of next lower
row.
1. Display a character on the current cursor position.
2. Move the cursor to the home position (left most
column of upper most row).
When “Vertical scroll mode” is selected.
Current cursor position
X position (Column)
Y position (Row)
Excluding right most column
−
Excluding lower most row
Right most column
Lower most row
Operations
1.
2.
1.
2.
1.
2.
3.
4.
Display a character on the current cursor position.
Increment the cursor to the right by one column.
Display a character on the current cursor position.
Move the cursor to left most column of next lower
row.
Display a character on the current cursor position.
Clear upper most row.
Shift all rows up by one to make lower most row
clear.
Move the cursor to left most column of lower most
row.
When “Horizontal scroll mode” is selected.
Cursor position
X direction
Y direction
Excluding right most column
-
Right most column
-
Operations
1. Display a character on the current cursor position.
2. Increment the cursor to the right by one column.
1. Display a character on the current cursor position.
2. Move to Scroll ON mode.
Note: The cursor does not move.
Operations
1. Shift only the current row left by one column to make
a space for the next character.
2. Display a character on the space
Note: The cursor does not move.
Scroll ON mode
Note:
Scroll ON mode is cancelled if any of the following commands are executed: “Back
Space”, “Line Feed”, “Home Position”, “Display Clear”, “Carriage Return”, “Cursor Set”,
“Over-write mode”, “Vertical scroll mode”, “Horizontal scroll mode”, “Insert character”,
“Delete character”, “Insert line” and “Delete line”.
- 18 -
CU20027-Y1A
13.3.2 Back Space
Code:
08h
Please refer to “11 Display Area-End of Line Behavior” before reading.
Function: The cursor moves to the left by one character. The details of operation are as follows:
When “Over-write mode” or “Vertical scroll mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
Excluding left most column
Left most column
Excluding upper most row
Upper most row
Operations
1. Decrement the cursor to the left by one column.
1. Move the cursor to right most column of next upper
row.
No operation
When “Horizontal scroll mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
Excluding left most column
Left most column
-
Operations
1. Decrement the cursor to the left by one column.
No operation
13.3.3 Horizontal Tab
Code:
09h
Please refer to “11 Display Area-End of Line Behavior” before reading.
Function: The cursor moves to the right by one character. The details of operation are as follows:
When “Over-write mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
Excluding right most column
Excluding lower most row
Right most column
Lower most row
Operations
1. Increment the cursor to the right by one column.
1. Move the cursor to left most column of next lower
row.
1. Move the cursor to the home position (left most
column of upper most row).
When “Vertical scroll mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
Excluding right most column
Excluding lower most row
Right most column
Lower most row
- 19 -
Operations
1. Increment the cursor to the right by one column.
1. Move the cursor to left most column of next lower
row.
1. Clear upper most row.
2. Shift all rows up by one to make lower most row
clear.
3. Move the cursor to left most column of lower most
row.
CU20027-Y1A
When “Horizontal scroll mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
Excluding right most column
-
Right most column
-
Note:
Operations
1. Increment the cursor to the right by one column.
1. Shift only the current row left by one column.
2. Keep executing this operation (Scroll ON mode).
Note: The cursor does not move.
Scroll ON mode is cancelled if any of the following commands are executed: “Back
Space”, “Line Feed”, “Home Position”, “Display Clear”, “Carriage Return”, “Cursor Set”,
“Over-write mode”, “Vertical scroll mode”, “Horizontal scroll mode”, “Insert character”,
“Delete character”, “Insert line” and “Delete line”.
13.3.4 Line Feed
Code:
0Ah
Please refer to “11 Display Area-End of Line Behavior” before reading.
Function: The cursor moves to next lower line. The details of operation are as follows:
When “Over-write mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
Excluding lower most row
Lower most row
Operations
1. Move the cursor to the same column of next lower
row.
1. Move the cursor to the home position (left most
column of upper most row).
When “Vertical scroll mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
Excluding lower most row
Lower most row
Operations
1. Move the cursor to the same column of next lower
row.
1. Clear upper most row.
2. Shift all rows up by one to make lower most row
clear.
Note: The cursor does not move.
When “Horizontal scroll mode” is selected.
Current cursor position
X direction (Column)
Y direction (Row)
-
-
13.3.5 Home Position
Code:
0Bh
Function: Cursor moves to the home position. (the left end of top line).
- 20 -
Operations
No operation
CU20027-Y1A
13.3.6 Display Clear
Code:
0Ch
Function: Display is cleared and cursor moves to home position.
13.3.7 Carriage Return
Code:
0Dh
Function: Cursor moves to left end of same line.
13.3.8 Underline cursor mode
Code:
13h
Function: Cursor is displayed as underline.
13.3.9 Cursor off mode
Code:
14h
Function: Cursor display is OFF.
13.3.10 Block cursor mode
Code:
15h
Function: Cursor is displayed as a block, blinking.
Blinking speed can be varied by “Blink Speed Control” command.
13.3.11 Underline cursor blink mode
Code:
16h
Function: Cursor is displayed as underline, blinking.
Blinking speed can be varied by “Blink Speed Control” command.
13.3.12 Cursor set
Code:
1Fh 24h xL 00h yL 00h
xL:
Cursor position x Lower byte (1 char /unit)
yL:
Cursor position y Lower byte (1 line /unit)
Definable area:
0 (00h) ≦ xL ≦ 19 (13h)
0 (00h) ≦ yL ≦ 1 (01h)
Function: The cursor moves to the specified X, Y position. If the specified X, Y position (X, Y,
either or both) is outside the definable area, the command is ignored, and the cursor
remains in the same position.
- 21 -
CU20027-Y1A
x：
00h
01h
00h
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
01h
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
y：
･･･
･･････
12h
13h
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
13.3.13 Initialize display
Code:
1Bh 40h
Function: Clear display and return settings to initial state.
Software settings return to power-on state.
Jumper settings are not re-loaded
13.3.14 RAM user font
Code:
1Bh 25h n
Function: Enable or disable for RAM user font.
n = 01h, 31h: Enable (If RAM user font is not defined for a character code, built-in character is
displayed)
n = 00h, 30h: Disable (RAM user font already defined are not affected)
Initial value: n = 00h
Characters already displayed are not affected.
In case of user font enable (n=01h, 31h), RAM user font is used for character codes defined using
"Define RAM user font" command regardless of the state of various other settings.
- 22 -
CU20027-Y1A
13.3.15 Define RAM user font
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 dot for X direction
d:
Defined data
Definable area:
a = 1 (01h)
32 (20h) ≦ c1 ≦ c2 ≦ 255 (FFh)
x = 5 (05h)
0 (00h) ≦ d ≦ 255 (FFh)
k = c2 - c1 + 1
Function: Define user font into RAM.
A maximum of 16 characters may be defined.
After the first 16 are defined, any additional user font characters required must replace
one already defined.
To display RAM user font characters, execution of “Define RAM user font” and “RAM
user font” command is required. If a RAM user font character that is currently being
displayed is re-defined, the currently-displayed character also changes to the new RAM
user font character.
< RAM User font data format>
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
P33
P34
P35
P36
P37
P38
P39
P40
1st byte
2nd byte
3rd byte
4th byte
5th byte
B7(MSB)
P8
P16
P24
P32
P40
5x8 dot assignment
B6
P7
P15
P23
P31
P39
- 23 -
B5
P6
P14
P22
P30
P38
B4
P5
P13
P21
P29
P37
B3
P4
P12
P20
P28
P36
B2
P3
P11
P19
P27
P35
B1
P2
P10
P18
P26
P34
B0(LSB)
P1
P9
P17
P25
P33
CU20027-Y1A
13.3.16 Delete RAM user font
Code:
1Bh 3Fh a c
a:
Select character
c:
Character code to delete
Definable area:
a = 1 (01h)
32 (20h) ≦ c ≦ 255 (FFh)
Function: Delete defined RAM user font character.
The built-in character is displayed after this command is executed.
If the RAM user font character is currently being displayed, the display changes to
built-in character (according to the current settings for “Specify international font set” and
“Specify character code type” command).
This command is ignored if character code for RAM user font is not defined.
13.3.17 Character blink mode OFF
Code:
1Bh 41h
Function: Cancel character blink mode.
Blinking stops for characters written after this command is executed.
Characters already displayed are not affected.
13.3.18 Character blink mode ON
Code:
1Bh 42h
Function: Specifies character blink mode.
Blinking starts for characters written after this command is executed.
Characters already displayed are not affected.
Blinking speed can be varied by “Blink speed control” command.
13.3.19 Specify quick write mode
Code:
1Bh 45h
Function: Specifies quick write mode.
Quick data write with minimum BUSY time will be provided by this mode because data
acceptance is given priority over refreshing of the screen.
Note:
Within this mode, continuous high speed data write may cause display to flicker.
Blinking speed may deviate from set speed.
The figure in 13.3.21 Specify flickerless write mode shows the difference between
Flickerless Mode and Quick Write Mode.
- 24 -
CU20027-Y1A
13.3.20 Specify International font set
Code:
1Bh 52h n
Definable area:
0 (00h) ≦ n ≦ 13 (0Dh)
Default: n = 0 (00h)
Function: Select international font set.
Does not affect characters already displayed.
Note:
Refer to 10 Font Table Configuration at page 14.
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
13.3.21 Specify flickerless write mode
Code:
1Bh 53h
Function: Specifies flickerless write mode.
Within flickerless mode, although BUSY might become longer, flicker-less high-speed
continuous data write can be achieved since refreshing of screen is given priority over
data acceptance.
Note:
The following figure shows the difference between Flickerless Mode and Quick
Write Mode. Refer to 13.3.19 Specify quick write mode.
Command/
Data 2
Command/Data 1
Flickerless Mode
Screen
Refreshing
Command/data
processing
Comma nd/Da ta 1
S
T
O
P
S
T
O
P
S
T
O
P
Quick Write Mode
Screen
Refreshing
Command/data
processing
Command/Data 1
- 25 -
Command/
Data 2
Command/
Data 2
CU20027-Y1A
13.3.22 Blink speed control
Code:
1Bh
54h s
s:
Blinking speed
Definable area:
0 (00h) ≦ s ≦ 255 (FFh)
00h, FFh ：128×13.5ms (Typ.)
FEh, FDh：127×13.5ms (Typ.)
:
:
02h, 01h ：1×13.5ms (Typ.)
Default: s = 40h (32 X 13.5ms)
Function: Specifies blinking speed for block cursor, underline cursor blink, and character blink.
13.3.23 Underline display mode ON
Code:
1Bh
55h
Function: Specifies underline display mode.
Characters written after this command are displayed with underline. Characters already
displayed are not affected.
Note:
The underline changes an impression of characters on a display. Please refer to the
following sample pictures.
5×8 font without underline
5×8 font with underline
5×7 font with underline
13.3.24 Underline display mode OFF
Code:
1Bh
57h
Function: Cancel underline display mode.
Characters written after this command are displayed with no underline.
Characters already displayed are not affected.
13.3.25 Insert character
Code:
1Bh
58h F3h
Function: Characters from cursor position to right end of same line move to the right by one
character. The right-most character is discarded. One-character blank (space) is set at
cursor position. Cursor does not move.
Command is ignored if there is insufficient space in the x and/or y direction for one
character at the current cursor position.
- 26 -
CU20027-Y1A
13.3.26 Delete character
Code:
1Bh
58h F4h
Function: Character at cursor position is deleted, and display from there to right end of same line
moves to the left by one character. One-character blank (space) is set at right end of
same line. Cursor does not move.
Command is ignored if there is insufficient space in the x and/or y direction for one
character at the current cursor position.
13.3.27 Insert line
Code:
1Bh
58h F5h
Function: Display contents for the line of the current cursor position, and all lower lines, are shifted
down by one line. The line of the current cursor position is blanked (space), and cursor
position is set to left end of same line. Display contents in the bottom line are discarded.
Command is ignored if there is insufficient space in the x and/or y direction for one
character at the current cursor position.
13.3.28 Delete line
Code:
1Bh
58h F6h
Function: The line of the current cursor position is deleted, and the below display is moved up by
one line. Cursor position does not change. Bottom line is blanked (space).
Command is ignored if there is insufficient space in the x and/or y direction for one
character at the current cursor position.
13.3.29 Reset
Code:
1Bh 58h FFh
Function: Transition to state immediately after power-on.
Jumper settings are re-loaded; baud rate (for asynchronous serial), serial interface
(synchronous / asynchronous) and test mode setting.
13.3.30 Specify character code type
Code:
1Bh 74h n
Definable area: n = 0(00h), 1(01h), 2(02h), 3(03h), 4(04h),
5(05h), 16(10h), 17(11h), 18(12h),
19(13h), 255(FFh)
Default: n = 0
Function: Selects font code
Characters already displayed are not affected.
Note:
Refer to 10 Font Table Configuration at page 14.
- 27 -
n
Font code type
00h
01h
02h
03h
04h
05h
10h
11h
12h
13h
FFh
PC437(USA – Euro std)
Katakana – Japanese
PC850 (Multilingual)
PC860 (Portuguese)
PC863 (Canadian-French)
PC865 (Nordic)
WPC1252
PC866 (Cyrillic #2)
PC852 (Latin 2)
PC858
FROM User font table
CU20027-Y1A
13.3.31 Over-write mode
Code:
1Fh 01h
Function: Overwrite or replace an existing character. After replacing the character at right most
column of lower most row, move the cursor to the home position.
Note:
For further information of this command, please refer to “13.3.1 Character display”,
“13.3.2 Back Space”, “13.3.3 Horizontal Tab” and “13.3.4 Line Feed”.
13.3.32 Vertical scroll mode
Code:
1Fh 02h
Function: Overwrite or replace an existing character. After replacing the character at right most
column of lower most row, shift all rows up by one to make lower most row clear.
Note:
For further information of this command, please refer to “13.3.1 Character display”,
“13.3.2 Back Space”, “13.3.3 Horizontal Tab” and “13.3.4 Line Feed”.
13.3.33 Horizontal scroll mode
Code:
1Fh 03h
Function: Overwrite or replace an existing character. After replacing the character at right most
column of any row, shift only the current row left by one column to make a space for the
next character.
Note:
For further information of this command, please refer to “13.3.1 Character display”,
“13.3.2 Back Space”, “13.3.3 Horizontal Tab” and “13.3.4 Line Feed”.
13.3.34 Horizontal scroll speed
Code:
1Fh 73h n
Definable area:
0 (00h) ≦ n ≦ 31 (1Fh)
Default: n = 0 (00h)
Note: Next command is not executed until
scrolling action is finished.
If n=0 is specified, scrolling is
appeared by character n
Speed
00h
Instantaneous
01h – 1Fh
n×13.5ms (Typ.)
13.3.35 Brightness level setting
Code:
1Fh 58h n
n:
Brightness level setting
Definable area:
1 (01h) ≦ n ≦ 8 (08h)、49 (31h) ≦ n ≦ 56 (38h)
Default: n = 4 (04h)
Function: Specify display brightness level.
- 28 -
n
01h or 31h
02h or 32h
03h or 33h
04h or 34h
05h or 35h
06h or 36h
07h or 37h
08h or 38h
Brightness level
25 %
50 %
75 %
100 %
125 %
150 %
175 %
200 %
CU20027-Y1A
13.3.36 Wait
Code:
1Fh 28h 61h 01h t
t: Wait time
Definable area:
0 (00h) ≦ t ≦ 255 (FFh)
Function: Wait for the specified period of time. Command and data processing is suspended.
Wait time = t X approx. 0.5sec
13.3.37 Display blink
Code:
1Fh 28h 61h 11h p t1 t2 c
p:
Blink pattern
t1:
Normal display time
t2:
Blank display time
c:
Number of repetition
Definable area:
0≦p≦1
p=0: A display is not affected.
p=1: Repeat blink display with normal and blank display
1 (01h) ≦ t1 ≦ 255 (FFh)
1 (01h) ≦ t2 ≦ 255 (FFh)
0 (00h) ≦ c ≦ 255 (FFh)
Function: Blink display action
Blink pattern specified by “p”.
Time specified by “t1”, “t2”, and repeat Blink display
A : t1 X 13.5 ms (Typ.) Normal display
B : t2 X 13.5 ms (Typ.) Blank display
This command does not affect the display memory.
If c=0 is specified, blinking continues during subsequent command/data processing,
until c=1 – 255 or Initialize command is specified.
If c=1 – 255 is specified, blink display is repeated 1 – 255 times while command/data
execution is stopped. After display blinking is ended, normal display and command/data
execution is resumed.
During display blinking, Block cursor, Underline cursor blink and Character blink stops.
After blink action, blinking speed for Block cursor, Underline cursor blink and Character
blink change to t1 and t2 as set in blink action command.
- 29 -
CU20027-Y1A
13.3.38 Screen saver
Code:
1Fh 28h 61h 40h p
p:
Screen saver mode
Definable area:
0 (00h) ≦ p ≦ 3 (03h), 48 (30h) ≦ p ≦ 51 (33h)
p=00h or 30h: Power OFF (display OFF, Power save mode)
p=01h or 31h: Power ON (display ON)
p=02h or 32h: All dots OFF
p=03h or 33h: All dots ON
Function: Control power ON or OFF, and start screen saver mode.
p=00h, 01h, 30h, 31h: Control power ON or OFF. This is applied until this command is
re-specified
p=02h, 03h, 32h, 33h: Start screen saver mode. When next command or data is
inputted, screen saver is cancelled, and previous display condition is resumed.
All dots ON is at gray-shade level 8 (100%), regardless of the setting before Screen
saver action.
13.3.39 User set up mode start
Code:
1Fh 28h 65h 01h 49h 4Eh
Definable area:
d1 = 49h （Character "I"）
d2 = 4Eh （Character "N"）
Function: Start user set up mode.
This command is only valid in Direct Command mode.
Display screen is cleared and normal commands stop being accepted.
13.3.40 User set up mode end
Code:
1Fh 28h 65h 02h 4Fh 55h 54h
Definable area:
d1 = 4Fh （Character "O"）
d2 = 55h （Character "U"）
d3 = 54h （Character "T"）
Function: End user set up mode, and software reset of display is executed.
This command is only valid in user setup mode.
After this command is executed, software reset is executed, the receiving buffer is
cleared, and all settings and display are reset to a power-on condition.
Jumper settings are re-loaded; baud rate (for asynchronous serial), serial interface
(synchronous / asynchronous) and test mode setting.
- 30 -
CU20027-Y1A
13.3.41 Define FROM user font
Code:
1Fh 28h 65h 14h P(20h-1) P(20h-2)…P(FFh-5)
P:
Definition data
Definable area:
0 (00h) ≦ P ≦ 255 (FFh)
(20h-1)...P(20h-5)......P(FFh-5)
5 Bytes / font x 224 characters (1120 bytes)
Function: Define the 1 byte user font to the user font table in FROM.
All 224 characters should be defined at once; it is not possible to only define some part
of the FROM user font address space. Contents of FROM user font table are not defined
when shipped.
This command is only valid in user setup mode.
Data defined by this command is retained even if power is turned off.
Display power is switched OFF during processing of this command.
The display screen is cleared and display power is turned on again after this command
is executed.
To display FROM user font characters, "Specify character code type" command
(n=FFh) must be executed.
Please follow the procedures to define and display FROM user font characters.
(1) “User set up mode start” command
Code: 1Fh 28h 65h 01h 49h 4Eh
(2) “Define FROM user font“ command
Code: 1Fh 28h 65h 14h P(20h-1) P(20h-2)…P(FFh-5)
(3) “User set up mode end“ command
Code: 1Fh 28h 65h 02h 4Fh 55h 54h
(4) “Specify character code type“ command
Code: 1Bh 74h FFh
<FROM User font data format> 5x8 dot assignment
P1
P6
P11
P16
P21
P26
P31
P36
P2
P7
P12
P17
P22
P27
P32
P37
P(XXh-1)
P(XXh-2)
P(XXh-3)
P(XXh-4)
P(XXh-5)
P3
P8
P13
P18
P23
P28
P33
P38
P4
P9
P14
P19
P24
P29
P34
P39
B7(MSB)
P8
P16
P24
P32
P40
P5
P10
P15
P20
P25
P30
P35
P40
B6
P7
P15
P23
P31
P39
B5
P6
P14
P22
P30
P38
- 31 -
B4
P5
P13
P21
P29
P37
B3
P4
P12
P20
P28
P36
B2
P3
P11
P19
P27
P35
B1
P2
P10
P18
P26
P34
B0(LSB)
P1
P9
P17
P25
P33
CU20027-Y1A
13.3.42 Read Status information
Code:
1Fh 28h 65h 40h a [ b c d e ]
Definable area:
a =2 (02h), 32 (20h), 48 (30h), 128 (80h)
a= 02h : Firmware version information (b, c, d, e are not used)
a= 20h : Memory checksum information
0000h ≦ ( b + c x 100h ) ≦ FFFFh : Start address
0000h ≦ ( d + e x 100h ) ≦ FFFFh : Data length
a= 30h : Product type information (b, c, d, e are not used)
a= 80h : User font information (c, d, e are not used)
20h ≦ b ≦ FFh ：Character code
Function: Respond with the requested display status information.
The following data are sent from Asynchronous serial interface
This command is only valid in Serial OUT mode.
Send data
Hex
Number of data
1: Header
28h
1byte
2: Identifier 1
65h
1byte
3: Identifier 2
40h
1byte
4: Data
00h～FFh
a = 02h : 4 bytes
a = 20h : 4 bytes
a = 30h : 11 bytes
a = 80h : 5 bytes
13.3.43 Display Status information
Code:
1Fh 28h 65h 41h a
Definable area:
a =2 (02h), 32 (20h), 33 (21h)
a= 02h : Firmware version
a= 20h : Firmware checksum
a= 30h : User font table checksum
［P(20h-1)…P(FFh-5)］
Function: Display on home position the requested status information.
This command is only valid in user setup mode.
13.3.44 Serial OUT mode start
Code:
1Fh 28h 65h 83h d1 d2
Definable area:
d1 = 49h （Character "I"）
d2 = 4Eh （Character "N"）
Function: Switch SBUSY to Serial OUT and start “Serial OUT mode”.
This command is only valid when Asynchronous serial interface is selected and
mode is Direct Command mode.
Display screen is cleared and normal commands stop being accepted.
Wait at least 5ms after sending 4Eh ("N") before sending next data.
During Serial OUT mode, do not use SBUSY for communication flow control.
- 32 -
CU20027-Y1A
13.3.45 Serial OUT mode end
Code:
1Fh 28h 65h 84h d1 d2 d3
Definable area:
d1 = 4Fh （Character "O"）
d2 = 55h （Character "U"）
d3 = 54h （Character "T"）
Function: Switch Serial OUT to SBUSY and start “Direct Command mode”.
This command is only valid in Serial OUT mode.
After “Serial OUT mode end” command is executed, SBUSY=0 (READY) until receipt of
next data.
Wait at least 5ms after sending 54h ("T") before sending next data.
13.3.46 Select / Deselect 5×8 Matrix font
Code:
1Fh 28h 67h 04h d
d:
Select / Deselect 5×8 Matrix font
Definable area:
128 (80h) ≦ d ≦ 129 (81h)
d = 80h：Deselect 5×8 Matrix font
d = 81h：Select 5×8 Matrix font
Default: d = 81h (Select 5×8 Matrix font)
Function: Select / Deselect 5×8 Matrix font
Selecting 5×8 Matrix font gives decender to only these five characters: ‘g’ (67h),
‘j’ (6Ah), ‘p’ (70h), ‘q’ (71h) and ‘y’ (79h).
Both 5×8 font and 5×7 font give the same style fonts to the other characters.
d=81h: The five characters are displayed in 5×8 font after this command.
Characters already displayed are not affected.
For details of each pattern, refer to font spec. DS-1519-0002-xx.
5 Char
10 Char
5×8 Font
5×7 Font
- 33 -
15 Char
20 Char
CU20027-Y1A
13.3.47 Select/Deselect Alternative Magnified Font
Code:
1Fh 28h 67h 06h s
s:
Select/Deselect Alternative Magnified Font
Definable area:
0 (00h) ≦ s ≦ 1 (01h)
s = 00h：Normal font
s = 01h：Alternative Magnified font
Default: s = 00h
Function: Select Alternative Magnified font to improve legibility for Font magnified display.
This command is valid for characters written after this command execution; it does not
affect characters that are already displayed.
Alternative Magnified font is only used when magnification is x=2X, y=2X. At all other
times, normal font is used regardless of this setting.
Applicable characters are only for International font set "America" (n=00h). For all other
fonts, normal font is used regardless of this setting.
When FROM user font table (“Specify character code type” command) is selected, user
font characters have priority, regardless of this setting.
Note:
Refer to the DS-1519-0002-xx CU-Y Series VFD character fonts specification.
In case of character "1"
□□□□■
□□□□■
□□■■■
□□■■■
□□□□■
□□□□■
□□□□■
□□□□■
□□□□■
□□□□■
□□□□■
□□□□■
□□■■■
□□■■■
□□□□□
□□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■□□□□
■■■□□
■■■□□
□□□□□
□□□□□
Normal font
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□□□
□□□■■
□□□■■
□■■■■
□■■■■
□□□■■
□□□■■
□□□■■
□□□■■
□□□■■
□□□■■
□□□■■
□□□■■
□□□■■
□□□■■
□□□□□
□□□□□
Alternative Magnified font
- 34 -
CU20027-Y1A
13.3.48 Font Magnification
Code:
1Fh 28h 67h 40h x y
x:
Specify the size of magnification X
y:
Specify the size of magnification Y
Definable area:
1 (01h) ≦ x ≦ 2 (02h)
1 (01h) ≦ y ≦ 2 (02h)
Default: x = 01h
y = 01h
Function: Magnify the character by x times on the right, y times downward.
This command is valid for characters written after this command execution; it does not
affect characters that are already displayed.
x=2, y=1 is not supported (command will be ignored).
1x1 magnification
(default)
1x2 magnification
- 35 -
2x2 magnification
CU20027-Y1A
13.3.49 Individual Character Brightness Level Setting
Code:
1Fh 28h 67h 50h d1 d2 d3
d1:
Gray-shade level
d2:
Dummy data
d3:
Dummy data
Definable area:
1 (01h) ≦ d1 ≦ 8 (08h), 49 (31h) ≦ d1 ≦ 54 (38h)
D1
Level
01h or 31h Level 1 (0%)
02h or 32h Level 2 (14%)
03h or 33h Level 3 (29%)
04h or 34h Level 4 (43%)
05h or 35h Level 5 (57%)
06h or 36h Level 6 (71%)
07h or 37h Level 7 (86%)
08h or 38h Level 8 (100%)
0 (00h) ≦ d2 ≦ 255 (FFh)
0 (00h) ≦ d3 ≦ 255 (FFh)
Default: d1 = 8 (08h)
Function: Specify gray-shade level of characters.
This command is valid for characters written after this command execution; it does not
affect characters that are already displayed.
Note:
This individual character brightness is a relative value of allover display brightness. If the
display brightness level and the individual matrix brightness level are 200% (2,000
cd/m2) and Level 5 (57%) respectively, the individual character brightness is 2,000
cd/m2 × 57% = 1,140 cd/m2. In order to set allover the display brightness, please refer to
the command “13.3.35 Brightness level setting”.
Level 1
(0%)
Level 2
(14%)
Level 3
(29%)
Level 4
(43%)
- 36 -
Level 5
(57%)
Level 6
(71%)
Level 7
(86%)
Level 8
(100%)
CU20027-Y1A
14
Pin Configuration
14.1
Parallel interface connecter (Fourteen through-holes / CN1)
Pin
No.
Signal
name
Function
Direction
Pin
No.
Signal
name
Function
Direction
1
2
3
4
5
6
7
GND
VCC
PBUSY
/RESET
/WR
NC
D0
Ground
Power supply
Display busy
Reset
Data write
Non connection
Data input (LSB)
Output
Input
Input
Input
8
9
10
11
12
13
14
D1
D2
D3
D4
D5
D6
D7
Data input
Data input
Data input
Data input
Data input
Data input
Data input (MSB)
Input
Input
Input
Input
Input
Input
Input
14.2
Serial interface connector (Six through-holes / CN3)
14.2.1 Case of Asynchronous serial interface is selected.
Pin No.
Signal name
Function
Direction
1
2
3
4
5
6
VCC
SIN
GND
SBUSY
NC
/RESET
Power supply
Data receive
Ground
Display busy
Non connection
Reset
Input
Output
Input
14.2.2 Case of Synchronous serial interface is selected.
15
Pin No.
Signal name
Function
Direction
1
2
3
4
5
6
VCC
SIN
GND
SBUSY
SCK
/RESET
Power supply
Data receive
Ground
Display busy
Display clock
Reset
Input
Output
Input
Input
Firmware Version Notation
The firmware version is shown in the following position.
VFD
CN1
CN3
CU20027-Y1A xxxxx Fnnn
Part Number Date Code
- 37 -
Firmware Version
CU20027-Y1A
16
Physical Dimensions
- 38 -
CU20027-Y1A
Notice for the Cautious Handling VFD Modules
Handling and Usage Precautions:
Please carefully follow the appropriate product application notes for proper usage, safety handling, and operation standards for
maximum performance.
[VFD tubes are made of glass]
•
Because the edges of the VFD glass-envelop are not smooth, it is necessary to handle carefully to avoid injuries to
your hands
•
Please avoid breaking the VFD glass-envelop 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 operating condition because unrecoverable
damage may result.
•
Sending input signals to the VFD-module during a power off condition sometimes causes I/O port damage.
•
It is recommended to use a 30 cm or shorter signal cable to prevent functional failures.
[Electrostatic charge]
•
VFD-modules needs 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.
•
We prefer to use UL grade materials or components in conjunction with VFD-modules.
•
Wrap and twist motion causes stress and may break VFDs & 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.
•
Because some VFD-modules may consume in rush current equal to twice the typical current at power-on timing,
we recommend using a sufficient power capability and quick starting of the power regulator.
•
VFD-module needs a specified voltage at the point of connection. Please use an adequate power cable to avoid a
decrease in voltage. We also recommend inserting a power fuse for extra protection.
[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 a non uniform brightness among pixels. 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 to the pixels.
•
We recommend using a signal cable 30cm or less to avoid some possible disturbances to the signal.
[Storage and operating environment]
•
Please use VFD-modules under the recommended specified environmental conditions. Salty, sulfur and dusty
environments may damage the VFD-module even during storage.
[Discard]
•
Some VFDs contain a small amount of cadmium in the phosphor and lead in the solder. When discarding VFDs or
VFD-modules, please adhere to governmental related laws or regulations.
[Others]
•
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 are 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 take responsibility for problems that may occur.
- 39 -
CU20027-Y1A
Revision Note
SPEC number
Date
Revision
DS-1557-0001-00
Dec.5, 2008
Initial Issue
DS-1557-0001-01
Dec.17, 2008
13.3.1 Character display
“Horizontal scroll mode“
Operation has been corrected.
14.2 Serial interface connector
Direction of SIN has been corrected.
- 40 -