R01DS0190EJ0100 Datasheet, PDF (11/110 Pages) Renesas Technology Corp – 32 MHz 32-bit RX MCUs, 50 DMIPS, up to 128 Kbytes of flash memory

RX111 Group
1. Overview
Table 1.4
Pin Functions (2/3)
Classifications Pin Name
I/O
Description
Serial
communications
interface (SCIe)
 Simple I²C mode
SSCL1, SSCL5
SSDA1, SSDA5
I/O
Input/output pins for the I²C clock.
I/O
Input/output pins for the I²C 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.
Serial
communications
interface (SCIf)
 Asynchronous mode/clock synchronous mode
SCK12
I/O
Input/output pin for the clock.
RXD12
Input Input pin for receiving data.
TXD12
Output Output pin for transmitting 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 I²C mode
SSCL12
I/O
Input/output pin for the I²C clock.
SSDA12
I/O
Input/output pin for the I²C data.
 Simple SPI mode
SCK12
I/O
Input/output pin for the clock.
SMISO12
I/O
Input/output pin for slave transmit data.
SMOSI12
I/O
Input/output pin for master transmit data.
SS12#
Input Chip-select input pin.
 Extended serial mode
RXDX12
Input Input pin for data reception by SCIf.
TXDX12
Output Output pin for data transmission by SCIf.
SIOX12
I/O
Input/output pin for data reception or transmission by SCIf.
I²C bus interface SCL0
I/O
Input/output pin for I²C bus interface clocks. Bus can be directly driven by
the N-channel open drain output.
SDA0
I/O
Input/output pin for I²C bus interface data. Bus can be directly driven by the
N-channel open drain output.
Serial peripheral RSPCKA
interface
MOSIA
I/O
Input/output pin for the RSPI clock.
I/O
Input/output pin for transmitting data from the RSPI master.
MISOA
I/O
Input/output pin for transmitting data from the RSPI slave.
SSLA0
I/O
Input/output pin to select the slave for the RSPI.
SSLA1 to SSLA3
Output Output pins to select the slave for the RSPI.
USB 2.0 host/ VCC_USB
function module _{VSS_USB}
Input
Input
Power supply pin for USB. Connect this pin to VCC.
Ground pin for USB. Connect this pin to VSS.
USB0_DP
I/O
D+ I/O pin of the USB on-chip transceiver.
USB0_DM
I/O
D- I/O pin of the USB on-chip transceiver.
USB0_VBUS
Input USB cable connection monitor pin.
USB0_EXICEN
Output Low-power control signal for the OTG chip.
USB0_VBUSEN
Output VBUS (5 V) supply enable signal for the OTG chip.
USB0_OVRCURA,
USB0_OVRCURB
Input External overcurrent detection pins.
USB0_ID
Input Mini-AB connector ID input pin during operation in OTG mode.
R01DS0190EJ0100 Rev.1.00
Jun 19, 2013
Page 11 of 107