LC87F1A32A

No.A0704-9/26

Continued from preceding page.

Pin Name

I/O

Description

Option

Port 3

P30 to P34

I/O

• 5-bit I/O port

• I/O specifiable in 1-bit units

• Pull-up resistors can be turned on and off in 1-bit units.

• Pin functions

P34: USB interface PLL filter pin (see Fig.5)

Onchip debugger pin: DBGP0 to DBGP2 (P30 to P32)

Yes

Port 7

• 4-bit I/O port

• I/O specifiable in 1-bit units

• Pull-up resistors can be turned on and off in 1-bit units.

• Pin functions

P70: INT0 input/HOLD reset input/timer 0L capture input/watchdog timer output/

D+ 1.5k

Ω pull-up resistor connect pin

P71: INT1 input/HOLD reset input/timer 0H capture input

P72: INT2 input/HOLD reset input/timer 0 event input/timer 0L capture input/

High speed clock counter input

P73: INT3 input (input with a noise filter)/timer 0 event input/ timer 0H capture input/

infrared remote controller receiver input

AD converter input port: AN8(P70), AN9(P71)

Interrupt acknowledge type

Rising

Falling

Rising &

Falling

H level

L level

INT0

enable

enable

disable

enable

enable

INT1

enable

enable

disable

enable

enable

INT2

enable

enable

enable

disable

disable

INT3

enable

enable

enable

disable

disable

P70 to P73

I/O

No

PWM0

PWM1

I/O

• PWM0 and PWM1 output port

• General-purpose input port

No

D-

I/O

• USB data I/O pin D-

• General-purpose I/O port

No

D+

I/O

• USB data I/O pin D+

• General-purpose I/O port

No

RES

Input

Reset pin

No

XT1

Input

• 32.768kHz crystal oscillator input pin

• Pin functions

General-purpose input port

AD converter input port: AN10

Must be connected to VDD1 if not to be used.

No

XT2

I/O

32.768kHz crystal oscillator output pin

• Pin functions

General-purpose I/O port

AD converter input port: AN11

Must be set for oscillation and kept open if not to be used.

No

CF1

Input

Ceramic resonator input pin

No

CF2

Output

Ceramic resonator output pin

No