Lcd8B Display Control Register - Epson S1C17W18 Technical Manual

Bit 4 BSTEN
This bit turns the LCD voltage booster on and off.
1 (R/W): LCD voltage booster on
0 (R/W): LCD voltage booster off
For more information, refer to "LCD Power Supply."
Bit 3 BISEL
This bit selects the LCD drive bias.
1 (R/W): 1/4 bias
0 (R/W): 1/3 bias
Bit 2 HVLD
This bit sets the LCD voltage regulator into heavy load protection mode.
1 (R/W): Heavy load protection mode
0 (R/W): Normal mode
For more information, refer to "LCD Voltage Regulator Settings."
Bit 1 VCSEL
This bit sets the LCD voltage regulator output (reference voltage for boosting).
1 (R/W): V
0 (R/W): V
For more information, refer to "LCD Voltage Regulator Settings."
Note: The LCD8PWR.VCSEL bit must be set to 0 in an external voltage application mode.
Bit 0 VCEN
This bit turns the LCD voltage regulator on and off.
1 (R/W): LCD voltage regulator on
0 (R/W): LCD voltage regulator off
For more information, refer to "LCD Power Supply."

LCD8B Display Control Register

Register name Bit
LCD8DSP 15–8 –
7
6
5
4
3
2
1–0 DSPC[1:0]
Bits 15–7 Reserved
Bit 6 SEGREV
This bit selects the segment pin assignment direction.
1 (R/W): Normal assignment
0 (R/W): Inverse assignment
For more information, see Figures 18.6.3.1 to 18.6.3.4.
Bit 5 COMREV
This bit selects the common pin assignment direction.
1 (R/W): Normal assignment
0 (R/W): Inverse assignment
For more information, see Figures 18.6.3.1 to 18.6.3.4.
S1C17W18 TECHNICAL MANUAL
(Rev. 1.2)
C2
C1
Bit name Initial
0x00
–
SEGREV
COMREV
DSPREV
–
DSPAR
0x0
Seiko Epson Corporation
Reset R/W
– R –
0 – R
1 H0 R/W
1 H0 R/W
1 H0 R/W
0 – R
0 H0 R/W
H0 R/W
18 LCD DRIVER (LCD8B)
Remarks
18-25