RA4C1 datasheet(88/97 Pages) RENESAS

88 / 97 page

Appendix 1.

Port States in Each Processing Mode

Function

Pin function

Reset

Software Standby mode

Mode

Pull-up

Keep-O

IRQ

IRQx

Hi-Z

Keep-O*1

AGT

AGTIOn

Hi-Z

AGTIOn input

AGTOn/AGTOAn/AGTOBn

Hi-Z

AGTOn/AGTOAn/AGTOBn output

SCI

RXD0

Hi-Z

Keep-O*1

IIC

SCLn/SDAn

Hi-Z

Keep-O*1

UARTA

CLKAn

Hi-Z

CLKAn output

RxDAn

Hi-Z

RxDAn input

RTC

RTCIC0

Hi-Z

RTCIC0 input

RTCOUT

Hi-Z

RTCOUT output

CLKOUT

Hi-Z

CLKOUT output

SLCDC

SEGx/COMx

Hi-Z

SEGx/COMx output

VLx/CAPH/CAPL

Hi-Z

VLx/CAPH/CAPL input

Others

—

Hi-Z

Keep-O

Note:

H: High-level

L: Low-level

Hi-Z: High-impedance

Keep-O: Output pins retain their previous values. Input pins go to high-impedance.

Note 1. Input is enabled if the pin is specified as the Software Standby canceling source while it is used as an external interrupt pin.

RA4C1 Datasheet

Appendix 1. Port States in Each Processing Mode

R01DS0457EJ0110 Rev.1.10

Jul 4, 2025

Page 88 of 97

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