¡ Semiconductor
FEDL9205-02
ML9205-01
The character code setting of CGROM and CGRAM up to 24 digits is completed.
To set a character code from DCRAM address 00H continuously.
Specify a dummy charactor code between DCRAM addresses 18H and 1FH.
(To increament the DCRAM address automatically and set it to 00H)
2nd byte
(26th)
2nd byte
(33th)
2nd byte
(34th)
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7 : specifies the character codes of dummy CGROM
(Operated 8 times) and CGRAM
(Not written into DCRAM address)
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
: specifies the character codes of dummy CGROM
and CGRAM
(Not written into DCRAM address)
C0 C1 C2 C3 C4 C5 C6 C7 : specifies the character codes of CGROM and CGRAM
(DCRAM address 00H is rewritten)
X0 (LSB) to X4 (MSB): DCRAM addresses (5 bits: 24 characters)
C0 (LSB) to C7 (MSB): Character codes of CGROM and CGRAM (8 bits: 256 characters)
[COM positions and set DCRAM addresses]
HEX X0 X1 X2 X3 X4
00 0 0 0 0 0
01 1 0 0 0 0
02 0 1 0 0 0
03 1 1 0 0 0
04 0 0 1 0 0
05 1 0 1 0 0
06 0 1 1 0 0
07 1 1 1 0 0
08 0 0 0 1 0
09 1 0 0 1 0
0A 0 1 0 1 0
0B 1 1 0 1 0
0C 0 0 1 1 0
0D 1 0 1 1 0
0E 0 1 1 1 0
0F 1 1 1 1 0
COM position
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
HEX X0 X1 X2 X3 X4
10 0 0 0 0 1
11 1 0 0 0 1
12 0 1 0 0 1
13 1 1 0 0 1
14 0 0 1 0 1
15 1 0 1 0 1
16 0 1 1 0 1
17 1 1 1 0 1
18 0 0 0 1 1
19 1 0 0 1 1
1A 0 1 0 1 1
1B 1 1 0 1 1
1C 0 0 1 1 1
1D 1 0 1 1 1
1E 0 1 1 1 1
1F 1 1 1 1 1
COM position
COM17
COM18
COM19
COM20
COM21
COM22
COM23
COM24
Not fixed
Not fixed
Not fixed
Not fixed
Not fixed
Not fixed
Not fixed
Not fixed
17/34