0X50A0-0X50A6; Lcd Driver - Epson S1C17704 Technical Manual

APPENDIX A LIST OF I/O REGISTERS
0x50a0–0x50a6
Register name Address Bit
LCD Display 0x50a0 D7
Control Register
(8 bits) D6
(LCD_DCTL)
D5
D4
D3–2 –
D1–0 DSPC[1:0]
LCD Contrast 0x50a1 D7–4 –
Adjust Register (8 bits)
D3–0 LC[3:0]
(LCD_CADJ)
LCD Clock 0x50a2 D7–2 –
Control Register
(8 bits) D1–0 LDUTY[1:0] LCD duty select
(LCD_CCTL)
LCD Voltage 0x50a3 D7–5 –
Regulator
(8 bits)
D4
Control Register
D3–0 –
(LCD_VREG)
LCD Power 0x50a4 D7–2 –
Voltage Booster (8 bits)
Control Register D1
(LCD_PWR)
D0
LCD Interrupt 0x50a5 D7–1 –
Mask Register (8 bits)
(LCD_IMSK) D0
LCD Interrupt 0x50a6 D7–1 –
Flag Register (8 bits)
(LCD_IFLG) D0
AP-18
Name Function
SEGREV Segment output assignment control 1 Normal
COMREV Common output assignment control 1 Normal
DSPAR Display memory area control
DSPREV Reverse display control
reserved
LCD display control
reserved
LCD contrast adjustment
reserved
reserved
LHVLD
LCD heavy load protection mode
reserved
reserved
VDSEL Regulator power source select
PBON
Power voltage booster control
reserved
FRMIE
Frame signal interrupt enable
reserved
FRMIF Frame signal interrupt flag
Setting
0 Reverse
0 Reverse
1 Area 1 0 Area 0
1 Normal 0 Reverse
–
DSPC[1:0]
0x3
0x2
0x1 Normal display
0x0
–
LC[3:0]
0xf
:
0x0
–
LDUTY[1:0]
0x3
0x2
0x1
0x0
–
1 On 0 Off
–
–
1 V 0 V
D2
1 On 0 Off
–
1 Enable 0 Disable
–
1 Cccurred 0 Not occurred
EPSON

LCD Driver

Init. R/W Remarks
1 R/W
1 R/W
0 R/W
1 R/W
– – 0 when being read.
Display 0x0 R/W
All off
All on
Display off
– – 0 when being read.
Display 0x0 R/W
Dark
:
Light
– – 0 when being read.
Duty 0x2 R/W
reserved
1/32
1/16
reserved
– – 0 when being read.
0 R/W
– – 0 when being read.
– – 0 when being read.
0 R/W
DD
0 R/W
– – 0 when being read.
0 R/W
– – 0 when being read.
0 R/W Reset by writing 1.
S1C17704 TECHNICAL MANUAL