LC865520B/16B/12B/08B/04B

No.6697-9/21

Name

I/O

Function description

Option

PORT8

P80 to 83

P84 to 87

I

I/O

• 4-bit input port

• Data direction programmable for each bit individually

• 4-bit input/output port

• Other function

AD converter input port (8 pins)

-

RES

I

Reset

-

I

• Input terminal for 32.768kHz X'tal oscillation

• Other function

• When not in use, connect terminal to VDD

-

XT2/P75

O

• Output terminal for 32.768kHz X'tal oscillation

• Other function

XT2 : Input port P75

• When not in use

- If set as port, connect terminal to VDD.

- If set as oscillation, leave terminal open.

-

CF1

I

Input terminal for ceramic resonator

-

CF2

O

Output terminal for ceramic resonator

-

* All port options (except pull-up resistor of port 0) can be specified by bit.

A state of port terminals at reset

Name

Input/output mode

Style of pull-up resistors when pull-up option is enabled

Port 0

Input

Fixed pull-up resistor OFF

Ports 1,3

Input

Programmable pull-up resistor OFF