R8CSLASH13 datasheet(17/224 Pages) RENESAS

17 / 224 page

Rev.1.20

Jan 27, 2006

page 6 of 205

REJ09B0111-0120

R8C/13 Group

1. Overview

Signal name

Pin name

I/O type

Power supply

Vcc,

input

Vss

IVcc

Analog power

AVcc, AVss

supply input

Reset input

___________

RESET

CNVss

MODE

Main clock input

XIN

Main clock output XOUT

_____

INT interrupt input

_______

INT0 to INT3

Key input interrupt

_____

KI0 to KI3

input

Timer X

CNTR0

I/O

__________

CNTR0

Timer Y

CNTR1

I/O

Timer Z

TZOUT

Timer C

TCIN

CMP00 to CMP02, O

CMP10 to CMP12

Serial interface

CLK0

I/O

RxD0, RxD1

TxD0, TxD10,O

TxD11

Reference voltage VREF

input

A/D converter

AN0 to AN11

I/O port

P00 to P07,

I/O

P10 to P17,

P30 to P33, P37,

P45

Input port

P46, P47

Function

Apply 2.7 V to 5.5 V to the Vcc pin. Apply 0 V to the

Vss pin.

This pin is to stabilize internal power supply.

Connect this pin to Vss via a capacitor (0.1

µF).

Do not connect to Vcc.

Power supply input pins for A/D converter. Connect the

AVcc pin to Vcc. Connect the AVss pin to Vss. Connect a

capacitor between pins AVcc and AVss.

Input “L” on this pin resets the MCU.

Connect this pin to Vss via a resistor.(1)

Connect this pin to Vcc via a resistor.

These pins are provided for the main clock generat-

ing circuit I/O. Connect a ceramic resonator or a crys-

tal oscillator between the XIN and XOUT pins. To use

an externally derived clock, input it to the XIN pin and

leave the XOUT pin open.

______

INT interrupt input pins.

Key input interrupt pins.

Timer X I/O pin

Timer X output pin

Timer Y I/O pin

Timer Z output pin

Timer C input pin

The timer C output pins

Transfer clock I/O pin.

Serial data input pins.

Serial data output pins.

Reference voltage input pin for A/D converter. Con-

nect the VREF pin to Vcc.

Analog input pins for A/D converter

These are 8-bit CMOS I/O ports. Each port has an I/O

select direction register, allowing each pin in that port

to be directed for input or output individually.

Any port set to input can select whether to use a pull-

up resistor or not by program.

P10 to P17 also function as LED drive ports.

Port for input-only

1.6 Pin Description

Table 1.3 shows the pin description

Table 1.3 Pin description

NOTES :

1. Refer to "19.8 Noise" for the connecting reference resistor value.

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