HD6433802H Datasheet, PDF (390/435 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

LCR—LCD control register
H'C1
LCD controller/driver
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
—
PSW ACT DISP CKS3 CKS2 CKS1 CKS0
1
0
0
0
0
0
0
0
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Frame frequency select
Bit 3 Bit 2 Bit 1 Bit 1
CKS3 CKS2 CKS1 CKS0
0
*
00
0
*
01
0
*
1*
10
00
10
01
10
10
10
11
11
00
11
01
11
10
11
11
Display data control
0 Blank data is displayed
1 LCD RAM data is displayed
Operating Clock
øw
øw/2
øw/4
ø/2
ø/4
ø/8
ø/16
ø/32
ø/64
ø/128
ø/256
* : Don’t care
Display function activate
0 LCD controller/driver operation halted
1 LCD controller/driver operates
LCD drive power supply on/off control
0 LCD drive power supply off
1 LCD drive power supply on
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