M16CSLASH56D datasheet(16/85 Pages) RENESAS

16 / 85 page

REJ03B0307-0110 Rev.1.10 Dec 01, 2009

Page 16 of 83

M16C/5LD Group, M16C/56D Group

1. Overview

1.6

Pin Functions

Note 1. Please contact the oscillator manufacturer for oscillation characteristic.

Table 1.11

Pin Functions (64-Pin and 80-Pin Packages)

Signal Name

Pin Name

I/O

Description

Power supply

VCC, VSS

Apply 2.7 V to 5.5 V to VCC pin and 0 V to VSS pin.

Analog power

supply

AVCC,

AVSS

Power supply for the A/D converter. AVCC and AVSS should be

connected to VCC and VSS, respectively.

Reset input

RESET

Low active input pin. Driving this low resets the MCU.

CNVSS

Connect the CNVSS to VSS.

Main clock input

XIN

Input/output pin for the main clock oscillator. Connect a ceramic

resonator or crystal oscillator between XIN and XOUT. (1) To apply

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

XIN is not used, connect XIN to VCC pin and leave XOUT open.

Main clock output

XOUT

Sub clock input

XCIN

Input/output for the sub clock oscillator. Connect a crystal oscillator

between XCIN and XCOUT.

Sub clock output

XCOUT

Clock output

CLKOUT

This pin outputs the clock having the same frequency as f1, f8, f32,

or fC.

INT interrupt input

INT0 to INT5

Low active input pins for

INT interrupt. INT2 is used to input Z-phase

of timer A.

NMI input

NMI

Low active input pin for

NMI interrupt.

Key input interrupt

KI0 to KI3

Low active Input pins for the key input interrupt

Timer A

TA0OUT to

TA4OUT

I/O

Timers A0 to A4 input/output pins

TA0IN to TA4IN

Timers A0 to A4 input pins

Input pin for Z-phase

Timer B

TB0IN to TB2IN

Timers B0 to B2 input pins

Three-phase motor

control timer

U,V,V,W,W

Output pins for three-phase motor control timers

IDU, IDW, IDV,

Input pins for three-phase motor control timers

Real time clock

RTCOUT

Output pin for real time clock

Serial interface

CTS0 to CTS3

Input pins to control data transmission

RTS0 to RTS3

Output pins to control data reception

CLK0 to CLK3

I/O

Transfer clock input/output pins

RXD0 to RXD3

Serial data input pins

TXD0 to TXD3

Serial data output pins

I2C mode

SDA2

I/O

Serial data input/output pin

SCL2

I/O

Transfer clock input/output pin

Multi-master I2C

bus

SDAMM

I/O

Serial data input/output pin

SCLMM

Transfer clock input/output pin

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