Datasheet

Appendix B Internal I/O Registers
Rev. 6.00 Aug 04, 2006 page 600 of 680
REJ09B0145-0600
LCR—LCD Control Register H'C1 LCD controller/driver
Bit
Initial value
Read/Write
7

1

6
PSW
0
R/W
5
ACT
0
R/W
3
CKS3
0
R/W
0
CKS0
0
R/W
2
CKS2
0
R/W
1
CKS1
0
R/W
4
DISP
0
R/W
LCD drive power supply on/off control
Frame frequency select
Operating Clock
Bit 1
Bit 2
Bit 3
0
0
0
1
1
1
1
1
1
1
1
*
*
*
0
0
0
0
1
1
1
1
0
0
1
0
0
1
1
0
0
1
1
0
1
*
0
1
0
1
0
1
0
1
Bit 1
CKS1
CKS2
CKS3
CKS0
φ
w
φ
w/2
φ
w/4
φ
/2
φ
/4
φ
/8
φ
/16
φ
/32
φ
/64
φ
/128
φ
/256
Display function activate
LCD controller/driver operation halted
LCD controller/driver operates
Don't care
*
0
1
0 LCD drive power supply off
1 LCD drive power supply on
Display data control
0 Blank data is displayed
1 LCD RAM data is displayed