Toshiba TLCS-870/C Series Manual page 177

15. LCD Driver
15.4 Control Method of LCD Driver
Example :To display using 1/4 duty LCD a numerical value which corresponds to the LCD data stored in data mem-
ory at address 80H (when pins COM and SEG are connected to LCD as in Figure 15-6), display data
become as shown in Table 15-6.
TABLE:
Note:DB is a byte data difinition instruction.
LD A, (80H)
ADD A, TABLE-$-7
LD HL, 0F80H
LD W, (PC + A)
LD (HL), W
RET
DB 11011111B, 00000110B,
11100011B, 10100111B,
00110110B, 10110101B,
11110101B, 00010111B,
11110111B, 10110111B
Figure 15-6 Example of COM, SEG Pin Connection (1/4 Duty)
Table 15-6 Example of Display Data (1/4 Duty)
No. display
0
1
2
3
4
COM0
COM1
COM2
COM3
SEG0
SEG1
Display data No. display
11011111 5
00000110 6
11100011 7
10100111 8
00110110 9
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TMP86PM29BUG
Display data
10110101
11110101
00000111
11110111
10110111