32C87 datasheet(22/91 Pages) RENESAS

22 / 91 page

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

1. Overview

REJ03B0127-0151 Rev.1.51 Jul 31, 2008

Page 22 of 85

Table 1.18

Pin Functions (100-Pin and 144-Pin Package) (4/4)

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

Table 1.19

Pin Functions (144-Pin Package Only)

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

Type

Symbol

I/O

Type

Supply

Voltage

Description

I/O port

P0_0 to P0_7,

P1_0 to P1_7,

P2_0 to P2_7,

P3_0 to P3_7,

P4_0 to P4_7,

P5_0 to P5_7

I/O

VCC2

8-bit CMOS I/O ports. The Port Pi Direction Register (i = 0 to 15)

determines if each pin is used as an input port or an output port.

The Pull-Up Control Registers determine if the input ports, divided

into groups of four, are pulled up or not.

P6_0 to P6_7,

P7_0 to P7_7,

P9_0 to P9_7,

P10_0 to

P10_7

I/O

VCC1

These 8-bit I/O ports are functionally equivalent to P0.

(P7_0 and P7_1 are N-channel open drain output.)

P8_0 to P8_4

P8_6, P8_7

I/O

VCC1

These I/O ports are functionally equivalent to P0.

Input port

P8_5

VCC1

Shares the pin with NMI. Input port to read NMI pin level.

Key input

interrupt input

KI0 to KI3

VCC1

Key input interrupt input pins.

Type

Symbol

I/O

Type

Supply

Voltage

Description

INT Interrupt

Input

INT6 to INT8

VCC1

INT interrupt input pins.

Serial

interface

CTS6

IVCC1/

VCC2

Input pin to control data transmission.

RTS6

OVCC1/

VCC2

Output pin to control data reception.

CLK6

I/O

VCC1/

VCC2

Serial clock input/output pin.

RXD6

VCC1/

VCC2

Serial data input pin.

TXD6

VCC1/

VCC2

Serial data output pin.

Intelligent I/O

OUTC2_3 to

OUTC2_7

VCC2

Output pins for the waveform generation function.

A/D converter

AN15_0 to

AN15_7

VCC1

Analog input pins for the A/D converter.

I/O port

P11_0 to

P11_4,

P12_0 to

P12_7,

P13_0 to

P13_7

I/O

VCC2

These I/O ports are functionally equivalent to P0.

P14_0 to

P14_6,

P15_0 to

P15_7

I/O

VCC1

These I/O ports are functionally equivalent to P0.

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