hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 627

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

LCR—LCD Control Register
Bit
Initial value
Read/Write


7
1
LCD Drive Power Supply On/Off Control
0 LCD drive power supply off
1 LCD drive power supply on
PSW
R/W
6
0
Display Function Activate
0
1
ACT
R/W
5
0
LCD controller/driver operation halted
LCD controller/driver operates
Display Data Control
DISP
0 Blank data is displayed
1 LCD RAM data is displayed
R/W
4
0
CKS3
R/W
3
0
Frame Frequency Select
CKS3
Bit 3
Rev. 7.00 Mar 10, 2005 page 585 of 652
0
0
0
1
1
1
1
1
1
1
1
CKS2
CKS2
R/W
Bit 2
H'C1
2
0
*
*
*
0
0
0
0
1
1
1
1
Appendix B Internal I/O Registers
CKS1
Bit 1
0
0
1
0
0
1
1
0
0
1
1
CKS1
R/W
1
0
LCD Controller/Driver
CKS0
Bit 1
0
1
0
1
0
1
0
1
0
1
*
REJ09B0042-0700
CKS0
R/W
0
0
Operating Clock
*: Don't care
φ w
φ w /2
φ w /4
φ/2
φ/4
φ/8
φ/16
φ/32
φ/64
φ/128
φ/256