EM65567AF EMC [ELAN Microelectronics Corp], EM65567AF Datasheet - Page 61

• Manufacturer Part Number: EM65567AF
• Description: 66 COM/ 96 SEG 256 Color STN LCD Driver
• Manufacturer: EMC [ELAN Microelectronics Corp]

8.2.12 LCD Duty Set
(At the time of reset: {DS2, DS1, DS0}=0H, read address: CH)
※ Mark shows “Don’t care”
The DS register set to LCD display duty.
Partial display can be made possible by setting an arbitrary duty ratio.
8.2.13 Booster Set
(At the time of reset: {VU2, VU1, VU0}=0H, read address: DH)
※ Mark shows “Don’t care”
The booster steps set to VU register
8.2.14 Bias Setting Register Set
(At the time of reset: {B2, B1, B0}=0H, read address: EH)
※ Mark shows “Don’t care”
This register is used to set a bias ratio. A bias ratio can be selected from 1/9, 1/8, 1/7, 1/6, and 1/5 by setting B2, B1, and B0.
* This specification is subject to be changed without notice.
D7
D7
D7
VU1
DS2
1
1
1
B2
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D6
D6
D6
1
1
1
VU0
DS1
B1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D5
D5
D5
0
1
0
Booster disable (No operation)
2 times voltage output
3 times voltage output
4 times voltage output
DS0
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D4
D4
D4
0
0
1
8-dot width display in Y-direction, 1/10 duty
16-dot width display in Y-direction, 1/18 duty
24-dot width display in Y-direction, 1/26 duty
32-dot width display in Y-direction, 1/34 duty
40-dot width display in Y-direction, 1/42 duty
48-dot width display in Y-direction, 1/50 duty
56-dot width display in Y-direction, 1/58 duty
64-dot width display in Y-direction, 1/66 duty
1/9 Bias
1/8 Bias
1/7 Bias
1/6 Bias
1/5 Bias
Prohibit code
Prohibit code
Prohibit code
D3
D3
※
※
D3
※
Booster Operation
DS2
D2
D2
B2
D2
※
DS1
Bias
D1
D1
VU1
B1
D1
Display width and Duty
DS0
D0
D0
B0
VU0
D0
CSB
CSB
CSB
0
0
61
66 COM/ 96 SEG 256 Color STN LCD Driver
0
RS
RS
1
1
RS
1
RDB WRB RE2
RDB WRB RE2
RDB WRB
1
1
1
0
0
0
0
0
RE2
0
RE1
RE1
0
0
RE1
0
RE0
RE0
0
0
RE0
0
2003/1/9 (V0.1)
EM65567