GU-3900B series “General Function” Software Specification
6.1.4
Operating Mode
SW7
Mode
OFF
Normal operation mode
Normal display operating mode
ON
Memory re-write mode
Memory re-write mode for firmware, fonts, etc.
6.1.5
Protocol mode
SW8
Mode
OFF
Direct mode
Module accepts all of data regardless of address setting.
ON
Packet mode
Only the display with address that matches packet address
processes the data.
If packet address is FFh, all displays process the data.
6.2
Memory SW
Note: Module operates with default value if Memory SW value is outside the valid range.
* 1: If setting is 01h, download characters for 12×24 dot and 16×32 dot are also restored.
* 2: If setting is 01h, download characters for 32×32 dot are also restored.
- 69
-
Switch
No.
Function
Valid range
Default
0
International font set
00h–0Dh
00h
1
Character table type
00h–05h,10h–13h,FFh
00h
2
Horizontal scroll speed
00h–1Fh
00h
3
Reverse display
00h,01h
00h
4
Write mixture display mode
00h–03h
00h
5
Brightness level setting
00h–04h,10h–18h
04h
6
Reserved
-
-
7
Write screen mode
00h,01h
00h
8
Font size
01h,02h,03h,04h
01h
9
2-byte character
00h,01h
00h
10
Font magnification X
01h–04h
01h
11
Font magnification Y
01h–04h
01h
12
Bold character
00h,01h
00h
13
2-byte character type
00h–03h
00h
14
Horizontal scroll display quality select
00h,01h
00h
15
Reserved
-
-
16
Download character restore at power-on
(FROM→RAM) 6×8 dot (00h = Don't restore)
00h,01h
00h
17
Download character restore at power-on
(FROM→RAM) 8×16 dot (00h = Don't restore) *1
00h,01h
00h
18
Download character restore at power-on
(FROM→RAM) 16×16 dot (00h = Don't restore) *2
00h,01h
00h
19
FROM Macro execution at power-on
(00h = Not execute)
00h–04h,81h–84h
00h
20–47
Reserved
-
-
48
RS-232 Baud rate setting
00h–0Bh
00h
49
RS-232 Parity setting
00h–02h
00h
50
Display address setting (lower 4 bits not used)
0xh–Fxh
00h
51
Packet mode response setting (00h = No response)
00h,01h
00h
52
Macro end code Enable/Disable
00h,01h
00h
53
Macro end code
00h–FFh
00h
54
Macro end Clear Screen setting
00h,01h
00h
55–63
Reserved
-
-
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