RX634 Datasheet, PDF (11/106 Pages) Renesas Technology Corp – 54 MHz 32-bit RX MCU with FPU, 90 DMIPS, up to 2-Mbyte flash memory

RX634 Group
1. Overview
Table 1.4
Pin Functions (3 / 4)
Classifications
Pin Name
I/O
Description
Serial communications
interface (SCIe)
 Asynchronous mode/clock synchronous mode
SCK0 to SCK11
I/O
Input/output pins for the clock
RXD0 to RXD11
Input
Input pins for received data
TXD0 to TXD11
Output Output pins for transmitted data
CTS0# to CTS11#
Input
Input pins for controlling the start of transmission and reception
RTS0# to RTS11#
Output Output pins for controlling the start of transmission and reception
 Simple I²C mode
SSCL0 to SSCL11
I/O
Input/output pins for the I²C clock
SSDA0 to SSDA11
I/O
Input/output pins for the I²C data
 Simple SPI mode
SCK0 to SCK11
I/O
Input/output pins for the clock
SMISO0 to SMISO11
I/O
Input/output pins for slave transmission of data
SMOSI0 to SMOSI11
I/O
Input/output pins for master transmission of data
SS0# to SS11#
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 received data
TXD12
Output Output pin for transmitted 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 SCId
TXDX12
Output Output pin for data transmission by SCId
SIOX12
I/O
Input/output pin for data reception or transmission by SCId
I²C bus interface
SCL0, SCL1, SCL3
I/O
Input/output pin for I²C bus interface clocks. Bus can be directly
driven by the N-channel open-drain output.
SDA0, SDA1, SDA3
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, RSPCKB
I/O
Clock input/output pin for the RSPI.
MOSIA, MOSIB
I/O
Input or output data output from the master for the RSPI.
MISOA, MISOB
I/O
Input or output data output from the slave for the RSPI.
SSLA0, SSLB0
I/O
Input/output pin to select the slave for the RSPI.
SSLA1 to SSLA3
SSLB1 to SSLB3
Output Output pins to select the slave for the RSPI.
CEC transmission/
reception circuit (CEC)
CECIO
I/O
Input/output pin for CEC communication data
Remote control signal
receiver (RCR)
PMC0
PMC1
Input
Input
Input pin for external pulse signal
Input pin for external pulse signal
R01DS0255EJ0100 Rev.1.00
Feb 25, 2015
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