S6A0072 Datasheet, PDF (7/32 Pages) Samsung semiconductor – 16COM/40SEG DOT MATRIX LCD CONTROLLER & DRIVER

16COM/40SEG DOT MATRIX LCD CONTROLLER & DRIVER
S6A0072
DISPLAY DATA RAM (DDRAM)
DDRAM stores 8bits character code in CGROM/CGRAM and its maximum number is 16 (16 Characters).
DDRAM address is set by the address counter (AC) as hexadecimal number.
MSB
LSB
AC6 AC5 AC4 AC3 AC2 AC1 AC0
HEX
HEX
The relations of DDRAM address and display position is as follows.
1) DDRAM Addressing Mode 0 (A = 0)-
In this addressing mode, the address range of DDRAM is 00H - 0FH.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
COM1 - COM8
COM9 - COM16
Display Position
DDRAM Address
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
After Shift Left:
COM1
COM8
01 02 03 04 05 06 07 08
09
0A
0B
0C 0D
0E
0F
00
COM9
COM16
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
After Shift Right:
COM1
COM8
0F 00 01 02 03 04 05 06
07
08
09
0A
0B 0C
0D
0E
COM9
COM16
2) DDRAM Addressing Mode 1 (A = 1)
In this addressing mode, the address range of DDRAM is 00H - 07H and 40H - 47H.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
00 01 02 03 04 05 06 07 40 41 42 43 44 45 46 47
COM1 - COM8
COM9 - COM16
Display Position
DDRAM Address
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
After Shift Left:
COM1
COM8
01 02 03 04 05 06 07 40
41
42
43
44
45
46
47
00
COM9
COM16
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
After Shift Right:
COM1
COM8
4F 00 01 02 03 04 05 06
07
40
41
42
43
44
45
46
COM9
COM16
7