M32CSLASH8A datasheet(34/372 Pages) RENESAS

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M32C/8A Group

1. Overview

Rev.1.00

Jul 15, 2007

Page 17 of 352

REJ09B0385-0100

Table 1.13

Pin Functions (3) (100-Pin Package and 144-Pin Package)

NOTE:

1. P0 to P5 function as bus control pins and cannot be used as I/O ports. P1_0 to P1_7 can be used as I/O ports

when using with 8-bit external bus width only.

Table 1.14

Pin Functions (4) (144-Pin Package Only)

Item

Pin Name

I/O

Type

Supply

Voltage

Description

Reference

voltage input

VREF

−

The VREF pin supplies the reference voltage to the A/D converter

and D/A converter.

A/D converter

AN_0 to AN_7

VCC1

Analog input pins for the A/D converter.

ADTRG

VCC1

External trigger input pin for the A/D converter.

ANEX0

I/O

VCC1

Extended analog input pin for the A/D converter or output pin in

external op-amp connection mode.

ANEX1

VCC1

Extended analog input pin for the A/D converter.

D/A converter

DA0, DA1

VCC1

Output pins for the D/A converter.

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(1)

VCC2

8-bit CMOS I/O ports. The Port Pi Direction Register determines

if each pin is used as an input port or an output port. The Pull-up

Control Register determines 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

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

Item

Pin Name

I/O

Type

Supply

Voltage

Description

A/D converter

AN15_0 to

AN15_7

VCC1

Analog input pins for the A/D converter

I/O ports

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

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