Datasheet
R01DS0041EJ0150 Rev.1.50 Page 16 of 221
Oct 18, 2013
RX210 Group 1. Overview
Serial
communications
interface (SCId)
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 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 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
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.
Serial peripheral
interface
RSPCKA I/O Clock input/output pin for the RSPI.
MOSIA I/O Input or output data output from the master for the RSPI.
MISOA I/O Input or output data output from the slave for the RSPI.
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.
12-bit A/D converter AN000 to AN015 Input Input pins for the analog signals to be processed by the A/D
converter.
ADTRG0# Input Input pin for the external trigger signals that start the A/D
conversion.
D/A converter DA0, DA1 Output Output pins for the analog signals to be processed by the D/A
converter.
Comparator A CMPA1 Input Input pin for the comparator A1 analog signal.
CMPA2 Input Input pin for the comparator A2 analog signal.
CVREFA Input Input pin for the comparator reference voltage.
Comparator B CMPB0 Input Input pin for the comparator B0 analog signal.
CVREFB0 Input Input pin for the comparator B0 reference voltage.
CMPB1 Input Input pin for the comparator B1 analog signal.
CVREFB1 Input Input pin for the comparator B1 reference voltage.
Table 1.8 Pin Functions (3 / 4)
Classifications Pin Name I/O Description