Preliminary Version 1.0

144x65 Character/Graphic LCD Driver

RA8816N

Table 4-5 : Pin Definition of Parallel / Serial Mode of MPU

Parallel Mode

Serial Mode

8080

6800

Pin Name

I/O

8Bit

4Bit

8Bit

4Bit

3-Wire

4-Wire

(A-Type)

4-Wire

(B-Type)

DB7

I/O

DB7

--*

1

0

--

0

1

1

DB6

I/O

DB6

--

1

--

2

0

1

DB5

I/O

DB5

--

--

--

--

--

--

DB4

I/O

DB4

--

--

--

--

--

--

DB3

I/O

DB3

DB3

DB3

DB3

CS

CS

CS

DB2

I/O

DB2

DB2

DB2

DB2

--

RS

SDI

DB1

I/O

DB1

DB1

DB1

DB1

SDA

SDA

SDO

DB0

I/O

DB0

DB0

DB0

DB0

SCK

SCK

SCK

RD

, EN

I

RD

RD

EN

EN

1*

2

1*

2

1*

2

WR

I

WR

WR

1*

2

1*

2

1*

2

D/ C , RS

I

D/ C

D/ C

RS

RS

1*

2

1*

2

1*

2

CS

I

CS

CS

CS

CS

1

1

1

C86

I

0

0

1

1

1

1

1

BIT4

I

0

1

0

1

1

1

1

P/ S

I

1

1

1

1

0

0

0

Note1 : “--" means the pin is not used and kept floating (NC).

Note2 : In serial mode, the unused parallel pins have to be connected to high (VDD).

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