HD6432646 Hitachi, HD6432646 Datasheet - Page 991

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

LCR—LCD Control Register
Bit
Initial value
Read/Write
LCD Power Supply Split-Resistance Connection Control
0
1
LCD power supply split-resistance is disconnected from V
LCD power supply split-resistance is connected to V
Display Function Activate
0
1
—
—
7
1
LCD controller/driver operation halted
LCD controller/driver operates
Display Data Control
0
1
PSW
R/W
Blank data is displayed
LCD RAM data is display
6
0
Notes: *1 When 1/3 duty is selected, the frame frequency is 4/3 times the
Frame Frequency Select
CKS3
Bit 3
0
1
ACT
R/W
CKS2
*2 This is the frame frequency when ø
Bit 2
5
0
0
1
*
value shown.
CKS1
Bit 1
0
1
0
1
0
1
DISP
R/W
4
0
CKS0
Bit 0
0
1
*
0
1
0
1
0
1
0
1
CKS3
R/W
H'FC31
Operating Clock
3
0
CC
ø
ø
ø
ø/8
ø/16
ø/32
ø/64
ø/128
ø/256
ø/512
ø/1024
SUB
SUB
SUB
CC
CKS2
/2
/4
R/W
2
0
SUB
= 32.768 kHz.
Frame Frequency
CKS1
R/W
1
0
ø = 20 MHz
128 Hz
152.6 Hz
4880 Hz
2440 Hz
1220 Hz
64 Hz
32 Hz
76.3 Hz
38.1 Hz
610 Hz
305 Hz
*: Don't care
CKS0
*2
*2
*2
R/W
0
0
*1
LCD
957