M16CSLASH62 datasheet(19/87 Pages) RENESAS

19 / 87 page

M16C/62 Group (M16C/62P, M16C/62PT)

page 19

1. Overview

Apply 2.7 to 5.5 V to the VCC1 pin and 0 V to the VSS pin. (2)

Applies the power supply for the A-D converter. Connect the AVCC pin to

VCC1. Connect the AVSS pin to VSS.

The microcomputer is in a reset state when applying "L" to the this pin.

Switches processor mode. Connect this pin to VSS to when after a reset to

start up in single-chip mode. Connect this pin to VCC1 to start up in micropro-

cessor mode. As for the BYTE pin of the 80-pin versions, pull-up processing

is performed within the microcomputer.

I/O pins for the main clock generation circuit. Connect a ceramic resonator or

crystal oscillator between XIN and XOUT (3). To use the external clock, input

the clock from XIN and leave XOUT open.

I/O pins for a sub clock oscillation circuit. Connect a crystal oscillator between

XCIN and XCOUT (3). To use the external clock, input the clock from XCIN

and leave XCOUT open.

The clock of the same cycle as fC, f8, or f32 is outputted.

______

Input pins for the INT interrupt

_______

Input pin for the NMI interrupt.

Input pins for the key input interrupt

These are timer A0, timer A3 and Timer A4 I/O pins. (except the output of

TAOUT for the N-channel open drain output.)

These are timer A0, timer A3 and Timer A4 input pins.

Input pin for the Z-phase.

These are timer B0, timer B2 to timer B5 input pins.

These are send control input pins.

These are receive control output pins.

These are transfer clock I/O pins.

These are serial data input pins.

These are serial data output pins. (except TXD2 for the N-channel open drain

output.)

These are serial data output pins.

This is output pin for transfer clock output from multiple pins function.

These are serial data I/O pins. (except SDA2 for the N-channel open drain

output.)

These are transfer clock I/O pins. (except SCL2 for the N-channel open drain

output.)

VCC1,

VSS

AVCC,

AVSS

____________

RESET

CNVSS

(BYTE)

XIN

XOUT

XCIN

XCOUT

CLKOUT

________

INT0 to INT2

_______

NMI

______

KI0 to KI3

TA0OUT,

TA3OUT,

TA4OUT

TA0IN,

TA3IN,

TA4IN

TB0IN,

TB2IN to TB5IN

_________

CTS0, CTS2

_________

RTS0, RTS2

CLK0, CLK1,

CLK3, CLK4

RXD0 to RXD2

SIN4

TXD0 to TXD4

SOUT3, SOUT4

CLKS1

SDA0 to SDA2

SCL0 to SCL2

Power supply input

Analog power

supply input

Reset input

CNVSS

Main clock input

Main clock output

Sub clock input

Sub clock output

Clock output

______

INT interrupt input

_______

NMI interrupt input

Key input interrupt

input

Timer A

Timer B

Serial I/O

I2C mode

I/O

VCC1

VCC2

VCC1

Power

Signal name

Pin name

I/O type

Description

supply

I : Input

O : Output

I/O : Input and output

NOTES:

1. In this manual, hereafter, VCC refers to VCC1 unless otherwise noted.

2. In M16C/62PT, apply 4.0 to 5.5 V to the VCC1 pin.

3. Ask the oscillator maker the oscillation characteristic.

Table 1.12 Pin Description (80-pin Version) (1)

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