PS240128WRF datasheet(12/27 Pages) POWERTIP

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PE240128WRF-001-HQ

VER.0

Page12

2.2

Interface Pin Description

Pin No.

Symbol

Function

−

A0 = "H": DB0 to DB8 or SI are display data

−

A0 = "L": DB0 to DB8 or SI are control data

RW_WR

Read / Write execution control pin

MPU Type

RW_WR

Description

6800

Read / Write control input pin

RW = “H” : read

RW = “L” : write

8080

/WR

Write enable clock input pin

The data on DB0 to DB8 are latched at the

rising edge of the /WR signal.

DB0

DB1

DB2

DB3

They connect to the standard 8-bit MPU bus via the 8 bit bi-directional bus.When

the following interface is selected and the XCS pin is high, the following pins

become highimpedance, which should be fixed to VDD or VSS.

DB4

DB5

DB6

DB7

In IIC Interface

D7: SCL; D6: SI ; D0, D1: SA1, SA0

D3, D2: Acknowledgement

D4, D5, D8 should be fixed to VDD or VSS.

E_RD

Read / Write execution control pin

MPU Type

RW_WR

Description

6800

Read / Write control input pin

-RW = “H”: When E is “H”, DB0 to DB8 are

in an output status.

-RW = “L”: The data on DB0 to DB8 are

latched at the falling edge of the E signal.

8080

/RD

Read enable clock input pin

When /RD is “L”, DB0 to DB8 are in an

output status.

RST

Reset input pin. When RST is “L”, initialization is executed.

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