
S1C62440/624A0/624C0/62480 TECHNICAL HARDWARE
EPSON
I-85
CHAPTER 9: LCD DRIVER
Segment Data Memory
The segment data memory of S1C62440/4A0 is allocated to
the built-in RAM addresses E00H–E4FH and E80H–ECFH,
and S1C624C0/480 is allocated to the built-in RAM ad-
dresses E00H–E65H and E80H–EF5H.
Figures 9.3.1(a) and (b) show the correspondence between
the segment data memory and the LCD dot matrix.
9.3
E01H
E00H
E80H
E81H
E03H
E02H
E05H
E04H
E84H
E85H
E06H .........
E4FH
ECEH
ECFH
E83H
E82H
↑
E07H .........
E86H .........
E87H .........
E4EH
S1C62440/4A0
SEG0
SEG1
SEG2
SEG3
SEG39
COM0
s
sD0
s
sD0
s
sD0
s
sD0
s
sD0
COM1
s
sD1
s
sD1
s
sD1
s
sD1
s
sD1
COM2
s
sD2
s
sD2
s
sD2
s
sD2
s
sD2
COM3
s
sD3
s
sD3
s
sD3
s
sD3
s
sD3
COM4
s
sD0
s
sD0
s
sD0
s
sD0
s
sD0
COM5
s
sD1
s
sD1
s
sD1
s
sD1
s
sD1
COM6
s
sD2
s
sD2
s
sD2
s
sD2
s
sD2
COM7
s
sD3
s
sD3
s
sD3
s
sD3
s
sD3
COM8
s
sD0
s
sD0
s
sD0
s
sD0
s
sD0
COM9
s
sD1
s
sD1
s
sD1
s
sD1
s
sD1
COM10 s
sD2
s
sD2
s
sD2
s
sD2
s
sD2
COM11 s
sD3
s
sD3
s
sD3
s
sD3
s
sD3
COM12 s
sD0
s
sD0
s
sD0
s
sD0
s
sD0
COM13 s
sD1
s
sD1
s
sD1
s
sD1
s
sD1
COM14 s
sD2
s
sD2
s
sD2
s
sD2
s
sD2
COM15 s
sD3
s
sD3
s
sD3
s
sD3
s
sD3
Memory address
Data bit
Fig. 9.3.1(a)
LCD dot matrix and segment
memory correspondence
(S1C62440/4A0)