R5F51406BDFK30 datasheet(12/118 Pages) RENESAS

12 / 118 page

R01DS0379EJ0110 Rev.1.10

Page 12 of 118

Apr 20, 2022

RX140 Group

1. Overview

Serial

communications

interface (SCIg,

SCIk)

• Asynchronous mode/clock synchronous mode

SCK1, SCK5, SCK6, SCK8,

SCK9

I/O

Input/output pins for the clock.

RXD1, RXD5, RXD6, RXD8,

RXD9

Input

Input pins for received data.

TXD1, TXD5, TXD6, TXD8,

TXD9

Output

Output pins for transmitted data.

CTS1#, CTS5#, CTS6#,

CTS8#, CTS9#

Input

Input pins for controlling the start of transmission and reception.

RTS1#, RTS5#, RTS6#,

RTS8#, RTS9#

Output

Output pins for controlling the start of transmission and reception.

• Simple I2C mode

SSCL1, SSCL5, SSCL6,

SSCL8, SSCL9

I/O

Input/output pins for the I2C clock.

SSDA1, SSDA5, SSDA6,

SSDA8, SSDA9

I/O

Input/output pins for the I2C data.

• Simple SPI mode

SCK1, SCK5, SCK6, SCK8,

SCK9

I/O

Input/output pins for the clock.

SMISO1, SMISO5, SMISO6,

SMISO8, SMISO9

I/O

Input/output pins for slave transmit data.

SMOSI1, SMOSI5, SMOSI6,

SMOSI8, SMOSI9

I/O

Input/output pins for master transmit data.

SS1#, SS5#, SS6#, SS8#,

SS9#

Input

Slave-select input pins.

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

SCL0

I/O

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

the N-channel open drain output.

SDA0

I/O

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

the N-channel open drain output.

Table 1.4

Pin Functions (2/3)

Classifications

Pin Name

I/O

Description

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