R7FA2L1AB2DFN datasheet(11/110 Pages) RENESAS

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Table 1.13

Pin functions (2 of 3)

Function

Signal

I/O

Description

RTC

RTCOUT

Output

Output pin for 1-Hz or 64-Hz clock

SCI

SCKn (n = 0 to 3, 9)

I/O

Input/output pins for the clock (clock synchronous mode)

RXDn (n = 0 to 3, 9)

Input

Input pins for received data (asynchronous mode/clock synchronous

mode)

TXDn (n = 0 to 3, 9)

Output

Output pins for transmitted data (asynchronous mode/clock

synchronous mode)

CTSn_RTSn (n = 0 to 3,

I/O

Input/output pins for controlling the start of transmission and

reception (asynchronous mode/clock synchronous mode), active-

low.

SCLn (n = 0 to 3, 9)

I/O

Input/output pins for the IIC clock (simple IIC mode)

SDAn (n = 0 to 3, 9)

I/O

Input/output pins for the IIC data (simple IIC mode)

SCKn (n = 0 to 3, 9)

I/O

Input/output pins for the clock (simple SPI mode)

MISOn (n = 0 to 3, 9)

I/O

Input/output pins for slave transmission of data (simple SPI mode)

MOSIn (n = 0 to 3, 9)

I/O

Input/output pins for master transmission of data (simple SPI mode)

SSn (n = 0 to 3, 9)

Input

Chip-select input pins (simple SPI mode), active-low

IIC

SCLn (n = 0, 1)

I/O

Input/output pins for the clock

SDAn (n = 0, 1)

I/O

Input/output pins for data

SPI

RSPCKA, RSPCKB

I/O

Clock input/output pin

MOSIA, MOSIB

I/O

Input or output pins for data output from the master

MISOA, MISOB

I/O

Input or output pins for data output from the slave

SSLA0, SSLB0

I/O

Input or output pin for slave selection

SSLA1 to SSLA3, SSLB1

to SSLB3

Output

Output pins for slave selection

CAN

CRX0

Input

Receive data

CTX0

Output

Transmit data

Analog power supply

AVCC0

Input

Analog voltage supply pin for the ADC12, DAC12

AVSS0

Input

Analog ground pin for the ADC12, DAC12

VREFH0

Input

Analog reference voltage supply pin for the ADC12. Connect this pin

to AVCC0 when not using the ADC12.

VREFL0

Input

Analog reference ground pin for the ADC12. Connect this pin to

AVSS0 when not using the ADC12.

ADC12

AN000 to AN014, AN017

to AN020

Input

Input pins for the analog signals to be processed by the A/D

converter.

ADTRG0

Input

Input pin for the external trigger signals that start the A/D

conversion, active-low.

DAC12

DA0

Output

Output pin for the analog signals processed by the D/A converter.

ACMPLP

VCOUT

Output

Comparator output pin

CMPREF0, CMPREF1

Input

Reference voltage input pins

CMPIN0, CMPIN1

Input

Analog voltage input pins

CTSU

TS00, TS02-CFC, TS04

to TS07, TS08-CFC to

TS16-CFC, TS17, TS18,

TS21 to TS25, TS26-CFC

to TS35-CFC

Input

Capacitive touch detection pins (touch pins)

TSCAP

—

Secondary power supply pin for the touch driver

KINT

KR00 to KR07

Input

Key interrupt input pins

RA2L1 Datasheet

1. Overview

R01DS0385EJ0100 Rev.1.00

Aug 06, 2020

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