Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 60 of 1823
Jul 31, 2019
RX23W Group 1. Overview
Port output
enable 2
POE0#, POE1#, POE3#,
POE8#
Input Input pins for request signals to place the MTU pins in the high impedance
state.
Realtime clock RTCOUT Output Output pin for the 1-Hz/64-Hz clock.
RTCIC0, RTCIC1 Input Time capture event input pins.
8-bit timer TMO0 to TMO2 Output Compare match output pins.
TMCI0 to TMCI3 Input Input pins for the external clock to be input to the counter.
TMRI1 to TMRI3 Input Counter reset input pins.
Serial
communications
interface (SCIg)
 Asynchronous mode/clock synchronous mode
SCK1, SCK5, SCK8 I/O Input/output pins for the clock.
RXD1, RXD5, RXD8 Input Input pins for received data.
TXD1, TXD5, TXD8 Output Output pins for transmitted data.
CTS1#, CTS5#, CTS8# Input Input pins for controlling the start of transmission and reception.
RTS1#, RTS5#, RTS8# Output Output pins for controlling the start of transmission and reception.
 Simple I
2
C mode
SSCL1, SSCL5, SSCL8 I/O Input/output pins for the I
2
C clock.
SSDA1, SSDA5, SSDA8 I/O Input/output pins for the I
2
C data.
 Simple SPI mode
SCK1, SCK5, SCK8 I/O Input/output pins for the clock.
SMISO1, SMISO5, SMISO8 I/O Input/output pins for slave transmit data.
SMOSI1, SMOSI5, SMOSI8 I/O Input/output pins for master transmit data.
SS1#, SS5#, SS8# 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 I
2
C mode
SSCL12 I/O Input/output pin for the I
2
C clock.
SSDA12 I/O Input/output pin for the I
2
C 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.
I
2
C bus interface SCL I/O Input/output pin for I
2
C bus interface clocks. Bus can be directly driven by
the N-channel open drain output.
SDA I/O Input/output pin for I
2
C bus interface data. Bus can be directly driven by
the N-channel open drain output.
Table 1.4 Pin Functions (2/4)
Classifications Pin Name I/O Description

Renesas RX Series Specifications

General

Core	RXv1, RXv2, RXv3
Flash Memory	Up to 8 MB
RAM	Up to 1 MB
Operating Voltage	1.62V to 5.5V
Operating Temperature	-40°C to +85°C or +105°C
Package	BGA, LQFP
ADC Resolution	12-bit
DAC Resolution	12-bit
Communication Interfaces	SCI, SPI, I2C, USB, Ethernet, CAN
Architecture	32-bit
Security Features	Memory Protection Unit (MPU)