M16C28 Datasheet, PDF(39/423 Page) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

M16C28 Datasheet, PDF (39/423 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

◁

M16C/28 Group (M16C/28, M16C/28B)

1. Overview

1.5 Pin Description

Table 1.11 Pin Description (64-pin, 80-pin and 85-pin packages)

Classification Symbol I/O Type

Function

Power Supply VCC, VSS

I

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

Analog Power

Supply

Reset Input

CNVSS

AVCC

AVSS

____________

RESET

CNVSS

I

Supplies power to the A/D converter. Connect the AVCC pin to VCC and

the AVSS pin to VSS.

___________

I

The microcomputer is in a reset state when "L" is applied to the RESET pin

I

Connect the CNVSS pin to VSS.

Main Clock

XIN

Input

I

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

or crystal oscillator between XIN and XOUT. To apply external clock, apply

Main Clock

Output

XOUT

O

it to XIN and leave XOUT open. If XIN is not used (for external oscillator or

external clock) connect XIN pin to VCC and leave XOUT open.

Sub Clock Input XCIN

I

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

Sub Clock Output XCOUT

O

between XCIN and XCOUT.

______

________ ________

______

________

INT Interrupt INT0 to INT5

I

Input pins for the INT interrupt. INT2 can be used for Timer A Z-phase

Input

_______

NMI Interrupt

Input

_______

NMI

function.

_______

_______

I

Input pin for the NMI interrupt. NMI cannot be used as I/O port while the three-

_______

phase motor control is enabled. Apply a stable "H" to NMI after setting it's

_____

_____

Key Input Interrupt KI0 to KI3

Timer A

TA0OUT to

direction register to "0" when the three-phase motor control is enabled.

I

Input pins for the key input interrupt

I/O I/O pins for the timer A0 to A4

TA4OUT

TA0IN to

I

Input pins for the timer A0 to A4

TA4IN

ZP

I

Input pin for Z-phase

Timer B

Three-phase

Motor Control

TB0IN to

TB2IN

___

___

U, U, V, V,

___

W, W

I

Input pins for the timer B0 to B2

O Output pins for the three-phase motor control timer

Timer Output IDU, IDW,

I/O Input and output pins for the three-phase motor control timer

_____

IDV, SD

_________ _________

Serial I/O

CTS0 to CTS2

I

Input pins for data transmission control

_________ _________

RTS0 to RTS2 O Output pins for data reception control

CLK0 to CLK3 I/O Inputs and outputs the transfer clock

RxD0 to RxD2

I

Inputs serial data

TxD0 to TxD2 O Outputs serial data

CLKS1

O Output pin for transfer clock

I2C bus Mode SDA2

I/O Inputs and outputs serial data

SCL2

Inputs and outputs the transfer clock

Multi-master

I2C bus

SDAMM

SCLMM

I/O Inputs and outputs serial data

Inputs and outputs the transfer clock

Reference

VREF

Voltage Input

I

Applies reference voltage to the A/D converter

A/D Converter AN0 to AN7 I

AN00 to AN03

Analog input pins for the A/D converter

AN24

___________

ADTRG

Input pin for an external A/D trigger

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

Rev. 2.00 Jan. 31, 2007 page 19 of 385

REJ09B0047-0200

▷