EM65571 ELAN Microelectronics Corp, EM65571 Datasheet - Page 83

• Manufacturer Part Number: EM65571
• Description: 130com / 128seg 65k Color Stn Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 08.04.2005
(This specification is subject to change without further notice)
8.2.10 Bias Setting Register (B)
Note: During a reset: {B3, B2, B1, B0} = 0H, read address: EH
This register is used to set the bias ratio. A bias ratio can be selected from 1/5 to 1/13 by
setting B3, B2, B1, and B0.
8.2.11 Register Access Control
Note: During a reset: {TST0, RE2, RE1, RE0} = 0H, read address: FH
The RE register is use set to number of register bank. In accessing each control register,
set the RE register first.
The TST0 register is use for testing purposes, hence, this register must be set to “0”
8.2.13 Gradation Palette Register (PA0~PA7, PB0~PB7, PC0~PC7)
Note: Read address: 0H
Note: Read address: 1H
D7 D6
D7
D7
0
D7
1
1
0
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
X= 0, 8, 16, or 24
X= 0, 8, 16, or 24
During a reset: PA04~PA00 = “00000”
The asterisk “*” mark means “Don’t care”
D6
D6
D6
1
1
0
D5
0
D5
D5
D5
1
1
0
D4
0
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D4
D4
D4
0
0
1
PAX.3 PAX.2 PAX.1 PAX.0
D3
TST0 RE2
D3
B3
D3
D3
*
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D2
D2
B2
D2
*
D2
PAX.5 PAX.4
D1
B1
D1
D1
RE1
D1
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D0
B0
130COM/128SEG 65K Color STN LCD Driver
RE0
D0
D0/
D0
CSB RS RDB WRB RE2 RE1 RE0
CSB RS RDB WRB RE2 RE1 RE0
CSB RS RDB WRB RE2 RE1 RE0
CSB RS RDB WRB RE2 RE1 RE0
0
0
0
0
1
1
1
1
Prohibit code
Prohibit code
Prohibit code
Prohibit code
Prohibit code
Prohibit code
Prohibit code
1
1/10 Bias
1/11 Bias
1/12 Bias
1/13 Bias
1
1
1
1/5 Bias
1/6 Bias
1/7 Bias
1/8 Bias
1/9 Bias
Bias
0
0
0
0
0/1
0
0
0
EM65571
0/1
0
0
0
0/1
x 77
1
0
1