
R01UH0218EJ0110 Rev.1.10
Page 17 of 664
Sep 12, 2011
R32C/142 Group and R32C/145 Group
1. Overview
Table 1.12
Pin Definitions and Functions (2/3)
Three-phase
motor control
timer output
U,
U, V, V, W, W
O
Three-phase motor control timer output
Serial interface
CTS0 to CTS4
I
Handshake input
RTS0 to RTS4
O
Handshake output
CLK0 to CLK4
I/O
Transmit/receive clock input/output
RXD0 to RXD4
I
Serial data input
TXD0 to TXD4
O
Serial data output
I2C-bus
(simplified)
SDA0 to SDA2
I/O
Serial data input/output
SCL0 to SCL2
I/O
Transmit/receive clock input/output
Serial interface
special functions
STXD0 to STXD2
O
Serial data output in slave mode
SRXD0 to SRXD2
I
Serial data input in slave mode
SS0 to SS2
I
Input to control serial interface special functions
A/D converter
AN_0 to AN_7,
I
Analog input for the A/D converter
AN0_0 to AN0_7,
AN2_0 to AN2_7
ADTRG
I
External trigger input for the A/D converter
ANEX0
I/O
Expanded analog input for the A/D converter and
output in external op-amp connection mode
ANEX1
I
Expanded analog input for the A/D converter
D/A converter
DA0, DA1
O
Output for the D/A converter
Reference voltage
input
VREF
I
Reference voltage input for the A/D converter and D/
A converter
Intelligent I/O
IIO0_0 to IIO0_7
I/O
Input/output for the Intelligent I/O group 0. Either
input capture or output compare is selectable
IIO1_0 to IIO1_7
I/O
Input/output for the Intelligent I/O group 1. Either
input capture or output compare is selectable
UD0A, UD0B,
UD1A, UD1B
I
Input for the two-phase encoder
Serial bus
interface
SSO0, SSO1
I/O
Serial data output. Functions as serial data input/
output in 4-wire serial bus mode
SSI0, SSI1
I/O
Serial data input. Functions as serial data input/
output in 4-wire serial bus mode
SSCK0, SSCK1
I/O
Transmit/receive clock input/output
SCS0, SCS1
I/O
Input/output to control the synchronous serial
interface
LIN module
LIN0OUT, LIN1OUT
O
Transmit data output for the LIN communications
LIN0IN, LIN1IN
I
Receive data input for the LIN communications