Control Of Lcd Driver - Epson S1C6S3N2 Technical Manual

Cmos 4-bit single chip microcomputer
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Control of LCD driver

Table 4.7.2 Control bits of LCD driver
Address
D3
CSDC
078H
*1 Initial value at the time of initial reset
*2 Not set in the circuit
*3 Undefined
*4 Reset (0) immediately after being read
*5 Constantly "0" when being read
Address
Low
Page
High
4 or C
0
5 or D
6 or E
Fig. 4.7.8
Segment data memory map
S1C6S3N2 TECHNICAL HARDWARE
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (LCD Driver)
Table 4.7.2 shows the LCD driver's control bits and their
addresses. Figure 4.7.8 shows the segment data memory
map.
Register
D2
D1
D0
Name
ETI2
ETI8
ETI32
CSDC
R/W
ETI2
ETI8
ETI32
0
1
2
3
Segment data memory (38 words x 4 bits)
SR
*1
1
0
0
Dynamic
ALL OFF
0
Enable
Mask
0
Enable
Mask
0
Enable
Mask
4
5
6
7
8
40H–6FH = R/W
C0H–EFH = W
EPSON
Comment
LCD drive switch
Interrupt mask register
(clock timer 2 Hz)
Interrupt mask register
(clock timer 8 Hz)
Interrupt mask register
(clock timer 32 Hz)
9
A
B
C
D
E
F
I-59

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