R01UH0822EJ0100 Rev.1.00
Page 38 of 1041
Jul 31, 2019
RX13T Group
1. Overview
1.4
Pin Functions
lists the pin functions.
Table 1.4
Pin Functions (1/2)
Classifications
Pin Name
I/O
Description
Power supply
VCC
Input
Power supply pin. Connect it to the system power supply.
VCL
—
Connect this pin to the VSS pin via the 4.7 μF smoothing capacitor used to
stabilize the internal power supply. Place the capacitor close to the pin.
VSS
Input
Ground pin. Connect it to the system power supply (0 V).
Clock
XTAL
Output
Pins for connecting a crystal. An external clock can be input through the
EXTAL pin.
EXTAL
Input
Operating mode
control
MD
Input
Pin for setting the operating mode. The signal levels on this pin must not
be changed during operation.
System control
RES#
Input
Reset pin. This MCU enters the reset state when this signal goes low.
CAC
CACREF
Input
Input pin for the clock frequency accuracy measurement circuit.
On-chip
emulator
FINED
I/O
FINE interface pin.
Interrupts
NMI
Input
Non-maskable interrupt request pin.
IRQ0 to IRQ5
Input
Interrupt request pins.
Multi-function
timer pulse unit 3
MTIOC0A, MTIOC0B,
MTIOC0C, MTIOC0D
I/O
The TGRA0 to TGRD0 input capture input/output compare output/PWM
output pins.
MTIOC1A, MTIOC1B
I/O
The TGRA1 and TGRB1 input capture input/output compare output/PWM
output pins.
MTIOC2A, MTIOC2B
I/O
The TGRA2 and TGRB2 input capture input/output compare output/PWM
output pins.
MTIOC3A, MTIOC3B,
MTIOC3C, MTIOC3D
I/O
The TGRA3 to TGRD3 input capture input/output compare output/PWM
output pins.
MTIOC4A, MTIOC4B,
MTIOC4C, MTIOC4D
I/O
The TGRA4 to TGRD4 input capture input/output compare output/PWM
output pins.
MTIC5U, MTIC5V, MTIC5W
Input
The TGRU5, TGRV5, and TGRW5 input capture input/external pulse input
pins.
MTCLKA, MTCLKB,
MTCLKC, MTCLKD
Input
Input pins for the external clock.
ADSM0
Output
A/D trigger output pin.
Port output
enable 3
POE0#, POE8#, POE10#
Input
Input pins for request signals to place the MTU pins in the high impedance
state.
Serial
communications
interface (SCIg)
Asynchronous mode/clock synchronous mode
SCK1, SCK5
I/O
Input/output pins for the clock.
RXD1, RXD5
Input
Input pins for received data.
TXD1, TXD5
Output
Output pins for transmitted data.
CTS1#, CTS5#
Input
Input pins for controlling the start of transmission and reception.
RTS1#, RTS5#
Output
Output pins for controlling the start of transmission and reception.
Simple I
2
C mode
SSCL1, SSCL5
I/O
Input/output pins for the I
2
C clock.
SSDA1, SSDA5
I/O
Input/output pins for the I
2
C data.
Simple SPI mode
SCK1, SCK5
I/O
Input/output pins for the clock.
SMISO1, SMISO5
I/O
Input/output pins for slave transmit data.
SMOSI1, SMOSI5
I/O
Input/output pins for master transmit data.
SS1#, SS5#
Input
Chip-select input pins.