RA8808 データシートの表示（PDF） - RAIO

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RA8808

128 x 64 Driver for Dot Matrix LCD

RAIO 

Preliminary Version 1.0

RA8808

128x64Driver for Dot Matrix LCD

RW

RS

CS1

CS2B

CS3

CS4B

RSTB

PS

MODE

In Parallel Mode :

Read-Write Control or Write Control

When use 6800 series interface, this pin is used as data read/write control.

I

Active high for read and active low for write.

When use 8080 series interface, this pin is used as data write, active low.

In Serial Mode :

This pin is not used and must be connected to low.

In Parallel Mode :

Data or Instruction

RS = H Î DB0~DB7 : Display RAM data

I

RS = L Î DB0~DB7 : Instruction data

In Serial Mode :

This pin is not used and must be connected to low.

In Parallel Mode :

Chip selection for left side (Note 1)

In order to interface left side data for input or output, the terminals have to be

I

CS1 = H, CS2B = L.

In Serial Mode :

These pins are not used and must be connected to high or low.

In Parallel Mode :

Chip selection for right side (Note 1)

In order to interface right side data for input or output, the terminals have to

I

be

CS3 = H, CS4B = L.

In Serial Mode :

These pins are not used and must be connected to to high or low.

Reset Signal

When RSTB = L,

I

_ON/OFF register becomes set by 0. (display off)

_Display start line register becomes set by 0.(Z-address 0 set, display from

line 0)

After releasing reset, this condition can be changed only by instruction.

Parallel/Serial MPU Interface Selection

I

PS

Parallel/Serial

H

Parallel

L

Serial

MPU Interface Selection(Combine with PS)

PS

MODE

MPU Interface

I

H

H

6800 series

H

L

8080 series

L

H

3-wire SPI

L

L

IIC

RAiO TECHNOLOGY INC.

4/7

www.raio.com.tw

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