LC863864B/56B/48B/40B/32B/28B/24B/20B/16B

No.A0119-9/20

Continued from preceding page.

Terminal

I/O

Function Description

Option

Port 7

• 4-bit input/output port

Input or output can be specified for each bit

• Other function

P70

P71

P72

P73

INT0 input/HOLD release input/

Nch-Tr. output for watchdog timer

INT1 input/HOLD release input

INT2 input/Timer 0 event input

INT3 input (noise rejection filter connected)/

Timer 0 event input

Interrupt receiver format, vector addresses

rising

falling

rising/

falling

H level

L level

vector

INT0

enable

enable

disable

enable

enable

03H

INT1

enable

enable

disable

enable

enable

0BH

INT2

enable

enable

enable

disable

disable

13H

P70

P71 to P73

I/O

INT3

enable

enable

enable

disable

disable

1BH

Port 8

P84 to P87

I/O

• 4-bit input/output port

Input or output can be specified for each bit

• Other function

AD converter input port (4 lines)

NC

-

Unused terminal

Leave open

• Output form and existence of pull-up resistor for all ports can be specified for each bit.

• Programmable pull-up resistor is always connected regardless of port option, CMOS or N-ch open drain

output in port 1.

• Port status in reset

Terminal

I/O

Pull-up resistor status at selecting pull-up option

Port 0

I

Pull-up resistor OFF, ON after reset release

Port 1

I

Programmable pull-up resistor OFF