R01UH0822EJ0100 Rev.1.00
Page 39 of 1041
Jul 31, 2019
RX13T Group
1. Overview
Serial
communications
interface (SCIh)
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 transmission of data
SMOSI12
I/O
Input/output pin for master transmission of data
SS12#
Input
Chip-select input pin
Extended serial mode
RXDX12
Input
Input pin for SCIf received data
TXDX12
Output
Output pin for SCIf transmitted data
SIOX12
I/O
Input/output pin for SCIf received or transmitted data
I
2
C bus interface SCL0
I/O
Input/output pin for I
2
C bus interface clocks. Bus can be directly driven by
the N-channel open drain output.
SDA0
I/O
Input/output pin for I
2
C bus interface data. Bus can be directly driven by
the N-channel open drain output.
12-bit A/D
converter
AN000 to AN007
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.
ADST0
Output
Output pin for A/D conversion status.
Comparator C
CMPC00, CMPC02,
CMPC03
Input
Analog input pin for CMPC0
CMPC10, CMPC12,
CMPC13
Input
Analog input pin for CMPC1
CMPC20, CMPC22
Input
Analog input pin for CMPC2
COMP0 to COMP2
Output
Comparator detection result output pins.
CVREFC0
Input
Analog reference voltage supply pins for comparator C.
Analog power
supply
AVCC0
Input
Analog voltage supply pin for the 12-bit A/D converter, comparator C, and
the 8-bit D/A converter for generating comparator C reference voltage.
Connect this pin to VCC when these modules are not used.
AVSS0
Input
Analog ground pin for the 12-bit A/D converter, comparator C, and the 8-
bit D/A converter for generating comparator C reference voltage. Connect
this pin to VSS when these modules are not used.
I/O ports
P10, P11
I/O
2-bit input/output pins.
P22 to P24
I/O
3-bit input/output pins.
P36, P37
I/O
2-bit input/output pins.
P40 to P47
I/O
8-bit input/output pins.
P70 to P76
I/O
7-bit input/output pins.
P93, P94
I/O
2-bit input/output pins.
PA2, PA3
I/O
2-bit input/output pins.
PB0 to PB7
I/O
8-bit input/output pins.
PD3 to PD6
I/O
4-bit input/output pins.
PE2
Input
1-bit input pin.
Table 1.4
Pin Functions (2/2)
Classifications
Pin Name
I/O
Description