ST7571 Sitronix Technology, ST7571 Datasheet - Page 42

• Manufacturer Part Number: ST7571
• Description: 4 Gray Scale Dot Matrix LCD Controller/Driver
• Manufacturer: Sitronix Technology

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ST7571
9.1.17 Set Electronic Volume Register
This is 2-byte Instruction. The 1
reference voltage register. After 2
The 1
The 2
9.1.18 Select LCD Bias
This instruction selects LCD bias ratio for the internal voltage follower to drive the LCD.
Ver 1.5a
EV5
A0
A0
A0
0
0
0
0
1
1
0
:
:
st
nd
Instruction: Set Reference Voltage Select Mode
Instruction: Set Reference Voltage Register
B2
0
0
0
0
1
1
1
1
R/W
R/W
R/W
EV4
0
0
0
0
1
1
0
:
:
DB7
DB7
DB7
EV3
1
0
0
1
1
0
x
:
:
st
nd
instruction enters Reference Voltage mode, and the 2
instruction, Reference Voltage mode is released.
B1
0
0
1
1
0
0
1
1
DB6
DB6
DB6
EV2
0
0
0
1
1
1
x
:
:
DB5
DB5
DB5
EV5
EV1
0
0
0
1
1
0
:
:
42/76
B0
DB4
DB4
EV4
EV0
DB4
0
1
0
1
0
1
0
1
0
0
1
0
1
1
:
:
DB3
DB3
EV3
DB3
0
0
nd
LCD bias
DB2
DB2
DB2
one updates the contents of the
EV2
1/10
1/12
1/11
B2
1/5
1/6
1/7
1/8
1/9
0
EV Value
62
63
0
1
:
:
DB1
DB1
DB1
EV1
B1
0
2009/7/21
DB0
DB0
DB0
EV0
B0
1