M3087BFKBGP datasheet(20/91 Pages) RENESAS

20 / 91 page

M32C/87 Group (M32C/87, M32C/87A, M32C/87B)

1. Overview

REJ03B0127-0151 Rev.1.51 Jul 31, 2008

Page 20 of 85

Table 1.16

Pin Functions (100-Pin and 144-Pin Packages) (2/4)

I: Input O: Output I/O: Input and output

NOTE:

1. The CAN pins cannot be used in M32C/87B. Only CAN0 pins can be used in M32C/87A.

Type

Symbol

I/O

Type

Supply

Voltage

Description

Main clock

input

XIN

VCC1

Input/output pins for the main clock oscillation circuit. Connect a

ceramic resonator or crystal oscillator between XIN and XOUT. To

apply an external clock, apply it to XIN and leave XOUT open.

Main clock

output

XOUT

VCC1

Sub clock

input

XCIN

VCC1

Input/output pins for the sub clock oscillation circuit. Connect a

crystal oscillator between XCIN and XCOUT. To apply an external

clock, apply it to XCIN and leave XCOUT open.

Sub clock

output

XCOUT

VCC1

BCLK output

BCLK

VCC2

Bus clock output pin.

Clock output

CLKOUT

VCC2

The CLKOUT pin outputs the clock having the same frequency as

fC, f8, or f32.

INT interrupt

input

INT0 to INT2

VCC1

INT interrupt input pins.

INT3 to INT5

VCC2

NMI interrupt

input

NMI

VCC1

NMI interrupt input pin. Connect the NMI pin to VCC1 via a

resistor when the NMI interrupt is not used.

Timer A

TA0OUT to

TA4OUT

I/O

VCC1

Timer A0 to A4 input/output pins.

(TA0OUT is N-channel open drain output.)

TA0IN to

TA4IN

VCC1

Timer A0 to A4 input pins.

Timer B

TB0IN to

TB5IN

VCC1

Timer B0 to B5 input pins.

Three-phase

motor control

timer output

U, U, V, V,

W, W

VCC1

Three-phase motor control timer output pins.

Serial

interface

CTS0 to CTS5

VCC1

Input pins to control data transmission.

RTS0 to RTS5

VCC1

Output pins to control data reception.

CLK0 to CLK5

I/O

VCC1

Serial clock input/output pins.

RXD0 to RXD5

VCC1

Serial data input pins.

TXD0 to TXD5

VCC1

Serial data output pins.

(TXD2 is N-channel open drain output.)

I2C mode

SDA0 to SDA4

I/O

VCC1

Serial data input/output pins.

(SDA2 is N-channel open drain output.)

SCL0 to SCL4

I/O

VCC1

Serial clock input/output pins.

(SCL2 is N-channel open drain output.)

Serial

interface

special function

STXD0 to

STXD4

VCC1

Serial data output pins when slave mode is selected.

(STXD2 is N-channel open drain output.)

SRXD0 to

SRXD4

VCC1

Serial data input pins when slave mode is selected.

SS0 to SS4

VCC1

Control input pins used in the serial interface special mode.

IrDA

IrDAIN

VCC1

IrDA serial data input pin.

IrDAOUT

VCC1

IrDA serial data output pin.

CAN(1)

CAN0IN,

CAN1IN

VCC1

Received data input pins for the CAN communication function.

CAN0OUT,

CAN1OUT

VCC1

Transmit data output pins for the CAN communication function.

CAN1WU

VCC1

CAN wake-up interrupt input pin.

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