R32C121 datasheet(13/113 Pages) RENESAS

13 / 113 page

REJ03B0237-0050 Rev.0.50 Jul 31, 2008

Page 13 of 111

Under development

Preliminary Specification

This is a preliminary specification and is subject to change.

R32C/121 Group

1. Overview

Table 1.9

Pin Definitions and Functions (3/3)

Function

Symbol

I/O

Description

Intelligent I/O

IIO0_0 to IIO0_7

I/O

Input/output for the Intelligent I/O group 0. Either

input capture or output compare is selectable

IIO1_0 to IIO1_7

I/O

Input/output for the Intelligent I/O group 1. Either

input capture or output compare is selectable

UD0A, UD0B,

UD1A, UD1B

Input for the two-phase encoder

Serial bus

interface

SSO0 to SSO2

I/O

Serial data output. Functions as serial data input/

output in 4-wire serial bus mode

SSI0 to SSI2

I/O

Serial data input. Functions as serial data input/

output in 4-wire serial bus mode

SSCK0 to SSCK2

I/O

Transmit/receive clock input/output

SCS0 to SCS2

I/O

Input/output to control the synchronous serial

interface

LIN module

LIN0OUT to LIN1OUT

Transmit data output for the LIN communications

LIN0IN to LIN1IN

Receive data input for the LIN communications

CAN module

CAN0IN to CAN1IN

Receive data input for the CAN communications

CAN0OUT to CAN1OUT

Transmit data output for the CAN communications

CAN0WU to CAN1WU

Input for the CAN wake-up interrupt

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