RX231 datasheet(15/177 Pages) RENESAS

15 / 177 page

R01DS0261EJ0110 Rev.1.10

Page 15 of 177

Oct 30, 2015

RX230 Group, RX231 Group

1. Overview

Serial

communications

interface (SCIg)

 Simple SPI mode

SCK0, SCK1, SCK5, SCK6,

SCK8, SCK9

I/O

Input/output pins for the clock.

SMISO0, SMISO1, SMISO5,

SMISO6, SMISO8, SMISO9

I/O

Input/output pins for slave transmit data.

SMOSI0, SMOSI1, SMOSI5,

SMOSI6, SMOSI8, SMOSI9

I/O

Input/output pins for master transmit data.

SS0#, SS1#, SS5#, SS6#,

SS8#, SS9#

Input

Slave-select input pins.

IrDA interface

IRTXD5

Output

Data output pin in the IrDA format.

IRRXD5

Input

Data input pin in the IrDA format.

Serial

communications

interface (SCIh)

 Asynchronous mode/clock synchronous mode

SCK12

I/O

Input/output pin for the clock.

RXD12

Input

Input pin for receiving data.

TXD12

Output

Output pin for transmitting data.

CTS12#

Input

Input pin for controlling the start of transmission and reception.

RTS12#

Output

Output pin for controlling the start of transmission and reception.

 Simple I2C mode

SSCL12

I/O

Input/output pin for the I2C clock.

SSDA12

I/O

Input/output pin for the I2C data.

 Simple SPI mode

SCK12

I/O

Input/output pin for the clock.

SMISO12

I/O

Input/output pin for slave transmit data.

SMOSI12

I/O

Input/output pin for master transmit data.

SS12#

Input

Slave-select input pin.

 Extended serial mode

RXDX12

Input

Input pin for data reception by SCIf.

TXDX12

Output

Output pin for data transmission by SCIf.

SIOX12

I/O

Input/output pin for data reception or transmission by SCIf.

I2C bus interface

SCL

I/O

Input/output pin for I2C bus interface clocks. Bus can be directly driven by

the N-channel open drain output.

SDA

I/O

Input/output pin for I2C bus interface data. Bus can be directly driven by

the N-channel open drain output.

Serial peripheral

interface

RSPCKA

I/O

Input/output pin for the RSPI clock.

MOSIA

I/O

Input/output pin for transmitting data from the RSPI master.

MISOA

I/O

Input/output pin for transmitting data from the RSPI slave.

SSLA0

I/O

Input/output pin to select the slave for the RSPI.

SSLA1 to SSLA3

Output

Output pins to select the slave for the RSPI.

Serial sound

interface

SSISCK0

I/O

SSI serial bit clock pin.

SSIWS0

I/O

Word selection pin.

SSITXD0

Output

Serial data output pin.

SSIRXD0

Input

Serial data input pin.

AUDIO_MCLK

Input

Master clock pin for audio.

CAN module

CRXD0

Input

Input pin

CTXD0

Output

Output pin

SD host

interface

SDHI_CLK

Output

SD clock output pin

SDHI_CMD

I/O

SD command output, response input signal pin

Table 1.5

Pin Functions (3/4)

Classifications

Pin Name

I/O

Description

RX231 Datasheet(PDF) 15 Page - Renesas Technology Corp

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