HD6473887 Datasheet, PDF (465/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

LCR2—LCD control register 2
Bit
7
6
5
LCDAB —
—
Initial value
0
1
1
Read/Write
R/W
—
—
H'C2
4
SUPS
0
R/W
3
CDS3
0
R/W
2
CDS2
0
R/W
1
CDS1
0
R/W
0
CDS0
0
R/W
LCD
Charge/discharge pulse duty cycle select
Bit 3 Bit 2 Bit 1 Bit 1
CDS3 CDS2 CDS1 CDS0
Duty Cycle
0
0
0
0
1
0
0
0
1
1/8
0
0
1
0
2/8
0
0
1
1
3/8
0
1
0
0
4/8
0
1
0
1
5/8
0
1
1
0
6/8
0
1
1
1
0
10
*
*
1/16
11
*
*
1/32
* ^{Don’t care}
Drive power supply selection and step-up
constant-voltage (5 V) power supply control
0 Drive power supply is V_CC, step-up constant-voltage (5 V)
power supply operation is halted
1 Drive power supply is 5 V, step-up constant-voltage (5 V)
power supply operates
A waveform/B waveform switching control
0 Drive using A waveform
1 Drive using B waveform
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