SL20T0081 查看數據表（PDF） - System Logic Semiconductor

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SL20T0081

81 COMMON x 132 SEGMENT STN LCD DRIVER / CONTROLLER

System Logic Semiconductor 

SLS System Logic Semiconductor

SL20T0081

Reference Voltage Select

Consists of 2- byte instruction. The 1st instruction set reference voltage mode, the 2nd one updates the contents of

reference voltage register. After second instruction, reference voltage mode is released.

The 1st Instruction : Set Reference Voltage Select Mode

RS

RW

D7

D6

D5

D4

D3

D2

D1

D0

0

0

1

0

0

0

0

0

0

1

The 2nd Instruction : Set Reference Voltage Register

RS

RW

D7

D6

D5

D4

D3

D2

D1

D0

0

0

x

x

VR5

VR4

VR3

VR2

VR1

VR0

VR5

VR4

VR3

VR2

VR1

VR0

Reference voltage

parameter(α)

V0

Contrast

0

0

0

0

0

0

0

0

0

0

0

1

0

Minimum

Low

1

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

1

0

0

0

0

0

32 (default)

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

1

1

1

1

1

0

1

1

1

1

1

1

62

Maximum

High

63

Figure 15. Sequence for Setting the Reference Voltage

Setting Reference Voltage Start

1st Instruction for Mode Setting

2nd Instruction for Register Setting

Setting Reference Voltage Start

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