RA4W1 datasheet(12/105 Pages) RENESAS

12 / 105 page

R01DS0359EJ0100 Rev.1.00

Page 12 of 105

Mar 31, 2020

RA4W1 Datasheet

1. Overview

1.5

Pin Functions

Function

Signal

I/O

Description

Power supply

VCC

Input

Power supply pin. Connect it to the system power supply. Connect this pin

to VSS by a 0.1-μF capacitor. The capacitor should be placed close to the

pin.

VCL

Input

Connect this pin to the VSS pin by the 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).

VBATT

Input

Backup power pin

Clock

XTAL

Output

Pins for a crystal resonator. An external clock signal can be input through

the EXTAL pin.

EXTAL

Input

XCIN

Input

Input/output pins for the sub-clock oscillator. Connect a crystal resonator

between XCOUT and XCIN.

XCOUT

Output

CLKOUT_RF

Output

Bluetooth-dedicated clock output pin for output of a 1-, 2-, or 4-MHz signal

XTAL1_RF

Input

Pins for connecting the Bluetooth-dedicated clock oscillator. Connect a 32-

MHz oscillator to these pins.

XTAL2_RF

Output

CLKOUT

Output

Clock output pin

Operating mode

control

Input

Pins for setting the operating mode. The signal levels on these pins must

not be changed during operation mode transition at the time of release from

the reset state.

System control

RES

Input

Reset signal input pin. The MCU enters the reset state when this signal

goes low.

CAC

CACREF

Input

Measurement reference clock input pin

Interrupt

NMI

Input

Non-maskable interrupt request pin

IRQ0 to IRQ4, IRQ6,

IRQ7, IRQ9, IRQ11,

IRQ14, IRQ15

Input

Maskable interrupt request pins

KINT

KR00 to KR07

Input

A key interrupt can be generated by inputting a falling edge to the key

interrupt input pins

On-chip debug

TMS

I/O

On-chip emulator pins

TDI

Input

TCK

Input

TDO

Output

SWDIO

I/O

Serial Wire debug Data Input/Output pin

SWCLK

Input

Serial Wire Clock pin

SWO

Output

Serial Wire trace Output pin

Battery backup

VBATWIO0

I/O

Output wakeup signal for the VBATT wakeup control function.

External event input for the VBATT wakeup control function.

GPT

GTETRGA,

GTETRGB

Input

External trigger input pin

GTIO0A to

GTIOA5A,GTIO8A,

GTIO0B to

GTIOA5B,GTIO8B

I/O

Input capture, Output capture, or PWM output pin

GTIU

Input

Hall sensor input pin U

GTIV

Input

Hall sensor input pin V

GTIW

Input

Hall sensor input pin W

GTOUUP

Output

3-phase PWM output for BLDC motor control (positive U phase)

GTOULO

Output

3-phase PWM output for BLDC motor control (negative U phase)

GTOVUP

Output

3-phase PWM output for BLDC motor control (positive V phase)

GTOVLO

Output

3-phase PWM output for BLDC motor control (negative V phase)

GTOWUP

Output

3-phase PWM output for BLDC motor control (positive W phase)

GTOWLO

Output

3-phase PWM output for BLDC motor control (negative W phase)

AGT

AGTEE0, AGTEE1

Input

External event input enable

AGTIO0, AGTIO1

I/O

External event input and pulse output

AGTO0, AGTO1

Output

Pulse output

AGTOB0

Output

Output compare match B output

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