HD6433832S Datasheet, PDF (505/560 Pages) Renesas Technology Corp – single-chip microcomputers

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 0
CKS3 CKS2 CKS1 CKS0 Clock
0
*
0
0 φ_W
1 φ_W
1
* ^φ W^/2
1
0
0
0 φ /2
1 φ /4
1
0 φ /8
1 φ /16
1
0
0 φ /32
1 φ /64
1
0 φ /128
1 φ /256
Frame Frequency
φ = 5 MHz φ = 625 Hz
128 Hz (initial value)
64 Hz
32 Hz
—
610 Hz
—
305 Hz
—
153 Hz
610 Hz
76.3 Hz
305 Hz
38.1 Hz
153 Hz
—
76.3 Hz
—
38.1 Hz
—
Display data control
0 Blank data displayed
1 LCD RAM data displayed
Display active
0 LCD controller/driver operation stopped
1 LCD controller/driver operational
Power switch
0 LCD power supply resistive voltage divider off
1 LCD power supply resistive voltage divider on
Note: *Don’t care
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