LCR2—LCD control register 2
H'C2
LCD
Bit
7
LCDAB
0
6
—
1
5
—
1
4
SUPS
0
3
CDS3
0
2
CDS2
0
1
0
CDS0
0
CDS1
Initial value
Read/Write
0
R/W
—
—
R/W
R/W
R/W
R/W
R/W
Charge/discharge pulse duty cycle select
Bit 1 Bit 1
Bit 2
CDS2
Bit 3
CDS3
Duty Cycle
CDS1 CDS0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
1
0
0
1
1
0
0
1
1
*
*
0
1
0
1
0
1
0
1
*
*
1
1/8
2/8
3/8
4/8
5/8
6/8
0
1/16
1/32
Don’t care
*
Drive power supply selection and step-up
constant-voltage (5 V) power supply control
0
Drive power supply is VCC, 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
1
Drive using A waveform
Drive using B waveform
448