R01DS0190EJ0100 Datasheet, PDF (10/110 Pages) Renesas Technology Corp – 32 MHz 32-bit RX MCUs, 50 DMIPS, up to 128 Kbytes of flash memory

RX111 Group
1. Overview
1.4 Pin Functions
Table 1.4 lists the pin functions.
Table 1.4
Pin Functions (1/3)
Classifications Pin Name
I/O
Description
Power supply
VCC
VCL
VSS
Input
—
Input
Power supply pin. Connect it to the system power supply.
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.
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
Input *¹ XTAL pin.
EXTAL
Input
Operating mode
control
XCIN
XCOUT
CLKOUT
MD
Input Input/output pins for the sub-clock oscillator. Connect a crystal between
Output ^{XCIN and XCOUT.}
Output ^{Clock output pin}
Input
Pin for setting the operating mode. The signal levels on this pin must not be
changed during operation.
UB#
Input Pin used for USB interface mode of boot mode.
UPSEL
Input Pin used for USB interface mode of boot mode.
System control
CAC
On-chip
emulator
RES#
CACREF
FINED
Input
Input
I/O
Reset pin. This MCU enters the reset state when this signal goes low.
Input pin for the clock frequency accuracy measurement circuit.
FINE interface pin.
LVD
CMPA2
Input Detection target voltage pin for voltage detection 2
Interrupts
NMI
Input Non-maskable interrupt request pin.
IRQ0 to IRQ7
Input Interrupt request pins.
Multi-function MTIOC0A, MTIOC0B
timer pulse unit 2 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.
Port output
enable 2
POE0# to POE3#, POE8#
Input
Input pins for request signals to place the MTU pins in the high impedance
state.
Realtime clock
Serial
communications
interface (SCIe)
RTCOUT
Output Output pin for the 1-Hz/64-Hz clock.
 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.
R01DS0190EJ0100 Rev.1.00
Jun 19, 2013
Page 10 of 107