PD78F9232CS_15 datasheet(9/30 Pages) RENESAS

9 / 30 page

Preliminary Product Information U18550EJ2V0PM

µ PD78F9232CS, 78F9234CS

1. PIN FUNCTIONS

1.1

Port Functions

Pin Name

I/O

Function

After Reset

Alternate-

Function Pin

P00 to P03

I/O

Port 0.

4-bit I/O port.

Can be set to input or output mode in 1-bit units.

An on-chip pull-up resistor can be connected by setting software.

Input

−

P20 to P23

I/O

Port 2.

4-bit I/O port.

Can be set to input or output mode in 1-bit units.

An on-chip pull-up resistor can be connected by setting software.

Input

ANI0 to ANI3

P30

TI000/INTP0

P31

TI010/TO00/

INTP2

P32

−

P33

I/O

Can be set to input or output mode in 1-

bit units.

An on-chip pull-up resistor can be

connected by setting software.

Input

−

P34

Input

Port 3

Input only

Input

RESET

P40

−

P41

INTP3

P42

TOH1

P43

TxD6/INTP1

P44

RxD6

P45

−

P46

−

P47

I/O

Port 4.

8-bit I/O port.

Can be set to input or output mode in 1-bit units.

An on-chip pull-up resistor can be connected by setting software.

Input

−

P120

−

P121

P122

P123

I/O

Port 12.

4-bit I/O port.

Can be set to input or output mode in 1-bit units.

An on-chip pull-up resistor can be connected only to P120 and

P123 by setting software.

Input

−

P130

Output

Port 13.

1-bit output-only port

Output

−

Caution

The P121/X1 and P122/X2 pins are pulled down during reset.

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