RX111_16 Datasheet, PDF (11/127 Pages) Renesas Technology Corp – 32 MHz 32-bit RX MCUs, 50 DMIPS, up to 512 Kbytes of flash memory

RX111 Group
1. Overview
Table 1.4
Pin Functions (2/3)
Classifications Pin Name
I/O
Description
Realtime clock RTCOUT
Output Output pin for the 1-Hz/64-Hz clock.
Serial
communications
interface (SCIe)
 Asynchronous mode/clock synchronous mode
SCK1, SCK5
I/O
Input/output pins for the clock.
RXD1, RXD5
Input Input pins for received data.
TXD1, TXD5
Output Output pins for transmitted data.
CTS1#, CTS5#
Input Input pins for controlling the start of transmission and reception.
RTS1#, RTS5#
Output Output pins for controlling the start of transmission and reception.
Serial
communications
interface (SCIe)
 Simple I²C mode
SSCL1, SSCL5
SSDA1, SSDA5
I/O
Input/output pins for the I²C clock.
I/O
Input/output pins for the I²C data.
 Simple SPI mode
SCK1, SCK5
I/O
Input/output pins for the clock.
SMISO1, SMISO5
I/O
Input/output pins for slave transmit data.
SMOSI1, SMOSI5
I/O
Input/output pins for master transmit data.
SS1#, SS5#
Input Chip-select input pins.
Serial
communications
interface (SCIf)
 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 Chip-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.
Serial peripheral RSPCKA
interface
MOSIA
I/O
Input/output pin for the RSPI clock.
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.
R01DS0190EJ0130 Rev.1.30
May 31, 2016
Page 11 of 127