R01UH0823EJ0100 Rev.1.00
Page 968 of 1823
Jul 31, 2019
RX23W Group
33. Serial Communications Interface (SCIg, SCIh)
list the pin configuration of the SCIs for the individual modes.
Table 33.4
SCI Pin Configuration in Asynchronous Mode and Clock Synchronous Mode
Channel
Pin Name
I/O
Function
SCI1
SCK1
I/O
SCI1 clock input/output
RXD1
Input
SCI1 receive data input
TXD1
Output
SCI1 transmit data output
CTS1#/RTS1#
I/O
SCI1 transfer start control input/output
SCI5
SCK5
I/O
SCI5 clock input/output
RXD5
Input
SCI5 receive data input
TXD5
Output
SCI5 transmit data output
CTS5#/RTS5#
I/O
SCI5 transfer start control input/output
SCI8
SCK8
I/O
SCI8 clock input/output
RXD8
Input
SCI8 receive data input
TXD8
Output
SCI8 transmit data output
CTS8#/RTS8#
I/O
SCI8 transfer start control input/output
SCI12
SCK12
I/O
SCI12 clock input/output
RXD12
Input
SCI12 receive data input
TXD12
Output
SCI12 transmit data output
CTS12#/RTS12#
I/O
SCI12 transfer start control input/output
Table 33.5
SCI Pin Configuration in Simple I
2
C Mode
Channel
Pin Name
I/O
Function
SCI1
SSCL1
I/O
SCI1 I
2
C clock input/output
SSDA1
I/O
SCI1 I
2
C data input/output
SCI5
SSCL5
I/O
SCI5 I
2
C clock input/output
SSDA5
I/O
SCI5 I
2
C data input/output
SCI8
SSCL8
I/O
SCI8 I
2
C clock input/output
SSDA8
I/O
SCI8 I
2
C data input/output
SCI12
SSCL12
I/O
SCI12 I
2
C clock input/output
SSDA12
I/O
SCI12 I
2
C data input/output
Table 33.6
SCI Pin Configuration in Simple SPI Mode (1/2)
Channel
Pin Name
I/O
Function
SCI1
SCK1
I/O
SCI1 clock input/output
SMISO1
I/O
SCI1 slave transmit data input/output
SMOSI1
I/O
SCI1 master transmit data input/output
SS1#
Input
SCI1 chip select input
SCI5
SCK5
I/O
SCI5 clock input/output
SMISO5
I/O
SCI5 slave transmit data input/output
SMOSI5
I/O
SCI5 master transmit data input/output
SS5#
Input
SCI5 chip select input
SCI8
SCK8
I/O
SCI8 clock input/output
SMISO8
I/O
SCI8 slave transmit data input/output
SMOSI8
I/O
SCI8 master transmit data input/output
SS8#
Input
SCI8 chip select input