UU97950

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CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

7 of 14

www.unisonic.com.tw

QW-R125-048.a

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FUNCTION DESCRIPTIONS (Cont.)

Read Command Register and Transfer Method

The Command Registers can be read during read mode. The sequence for the command register read is

shown below.

S

0 1 1 1 1 1 0

A

1 ADSET

A

Slave address

R/W

Command

0

S

0 1 1 1 1 1 0

R/W

1

A

Data

A

P

Slave address

The command register addresses are described in 6. Command Description (ADSET command). The following

register settings can be read in this mode.

Register

D7

D6

D5

D4

D3

D2

D1

D0

Address

REG1

0

0

P5

P4

P3

P2

P1

P0

23h

REG2

P7

P6

P5

P4

P3

P2

P1

P0

24h

REG1: P5= Software reset condition

P4 to P0 = EVR setting

REG2: P7 to P6 = Frame Frequency (FR) setting

P5 to P4 = Power Save Mode (SR) setting

P3 = LCD drive waveform setting

P2 = Display ON/ OFF setting

P1= APON setting

P0 = APOFF setting

LCD Driver Bias Circuit

This device generates LCD driving voltage with on-chip Buffer AMP

And it can drive LCD at low power consumption.

Line and frame inversion set in DISCTL command.

Refer to the LCD driving waveform about each LCD diving waveform

Reset initialize condition

Initial condition after execute Software Reset is as follows.

Display OFF.

DDRAM address is initialized

Refer to Command Description about initialize value of register.

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COMMAND / FUCTION LIST

Description List of Command / Function

Command

Function

1

Address set(ADSET)

DDRAM address setting(00-22h)

2

EVR set (EVRSET)

EVR setting(0-31)

3

Display Control(DISCTL)

Frame Frequency, Power save mode setting

4

IC operation set (ICSET)

LCD drive mode,software reset, display on/off

5

All pixel Control(APCTL)

All pixel control during display ON