Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 61 of 1823
Jul 31, 2019
RX23W Group 1. Overview
Serial peripheral
interface
RSPCKA I/O Input/output pin for the RSPI clock.
MOSIA 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, SSLA3 Output Output pins to select the slave for the RSPI.
Serial sound
interface
SSISCK0 I/O SSI serial bit clock pin.
SSIWS0 I/O Word selection pin.
SSITXD0 Output Serial data output pin.
SSIRXD0 Input Serial data input pin.
AUDIO_MCLK Input Master clock pin for audio.
CAN module CRXD0 Input Input pin
CTXD0 Output Output pin
SD host
interface
SDHI_CLK Output SD clock output pin
SDHI_CMD I/O SD command output, response input signal pin
SDHI_D3 to SDHI_D0 I/O SD data bus pins
SDHI_CD Input SD card detection pin
SDHI_WP Input SD write-protect signal
USB 2.0 host/
function module
VCC_USB Input Power supply pin for USB. Connect this pin to VCC or connect this pin to
VSS via a 0.33 µF smoothing capacitor for stabilizing the internal power
supply.
VSS_USB Input 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.
12-bit A/D
converter
AN000 to AN007, AN016 to
AN020, AN027
Input Input pins for the analog signals to be processed by the A/D converter.
ADTRG0# Input Input pin for the external trigger signal that start the A/D conversion.
12-bit D/A
converter
DA0, DA1 Output Analog output pins of the D/A converter.
Comparator B CMPB2, CMPB3 Input Input pin for the analog signal to be processed by comparator B.
CVREFB2, CVREFB3 Input Analog reference voltage supply pin for comparator B.
CMPOB2, CMPOB3 Output Output pin for comparator B.
CTSU TS2 to TS4, TS7, TS8,
TS12, TS13, TS22, TS23,
TS27, TS30, TS35
Output Electrostatic capacitance measurement pins (touch pins).
TSCAP Output LPF connection pin.
Analog power
supply
AVCC0 Input Analog voltage supply pin for the 12-bit A/D converter and D/A converter.
Connect this pin to VCC when not using the 12-bit A/D converter and D/A
converter.
AVSS0 Input Analog ground pin for the 12-bit A/D converter and D/A converter. Connect
this pin to VSS when not using the 12-bit A/D converter and D/A converter.
VREFH0 Input Analog reference voltage supply pin for the 12-bit A/D converter.
VREFL0 Input Analog reference ground pin for the 12-bit A/D converter.
Table 1.4 Pin Functions (3/4)
Classifications Pin Name I/O Description

Renesas RX Series Specifications

General

Core	RXv1, RXv2, RXv3
Flash Memory	Up to 8 MB
RAM	Up to 1 MB
Operating Voltage	1.62V to 5.5V
Operating Temperature	-40°C to +85°C or +105°C
Package	BGA, LQFP
ADC Resolution	12-bit
DAC Resolution	12-bit
Communication Interfaces	SCI, SPI, I2C, USB, Ethernet, CAN
Architecture	32-bit
Security Features	Memory Protection Unit (MPU)