R7KA8M2ADECAC datasheet(17/295 Pages) RENESAS

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Table 1.15

Pin functions (5 of 7)

Function

Signal

I/O

Description

USBHS

VCC_USBHS

Input

Power supply pin

VSS1_USBHS,

VSS2_USBHS

Input

Ground pin

AVCC_USBHS

Input

Analog power supply

USBHS_RREF

I/O

Reference current source pin for the USBHS Must be connected to the

VSS2_USBHS pin through a 2.2-kΩ (±1%) resistor.

USBHS_DP

I/O

Input/output pin for the D+ data line of the USB bus

USBHS_DM

I/O

Input/output pin for the D- data line of the USB bus

USBHS_EXICEN

Output Must be connected to the OTG power supply IC

USBHS_ID

input

Must be connected to the OTG power supply IC

USBHS_VBUSEN

Output VBUS power supply enable pin for the USBHS

USBHS_OVRCURA,

USBHS_OVRCURB

Input

Overcurrent pin for the USBHS

USBHS_OVRCURA-

DS,

USBHS_OVRCURB-

Input

Overcurrent pin for the USBHS that can also be used in Deep Software Standby

mode 1.

USBHS_VBUS

Input

USB cable connection monitor input pin

OSPI

OM_n_SCLK

Output Clock output (OCTACLK divided by 2)

OM_n_SCLKN

Output Inverted clock output (OCTACLK divided by 2)

OM_n_CSn

Output Chip select signal for an OctaFlash device, active-low

OM_n_DQS

I/O

Read data strobe/write data mask signal

OM_n_SIOn

I/O

Data input/output

OM_n_RESET

Output Reset signal for both slave devices, active-low

OM_n_ECSINT1

Input

Error Correction Status and Interrupt for slave1

OM_n_RSTO1

Input

Slave reset status for slave1

OM_n_WP1

Output Write Protect for slave1, active-low

SSIE

SSIBCK0, SSIBCK1

I/O

SSIE serial bit clock pins

SSILRCK0/SSIFS0,

SSILRCK1/SSIFS1

I/O

LR clock/frame synchronization pins

SSITXD0

Output Serial data output pin

SSIRXD0

Input

Serial data input pin

SSIDATA1

I/O

Serial data input/output pins

AUDIO_CLK

Input

External clock pin for audio (input oversampling clock)

SDHI/MMC

SDnCLK

Output SD clock output pins

SDnCMD

I/O

Command output pin and response input signal pins

SDnDAT0 to

SDnDAT7

I/O

SD and MMC data bus pins

SDnCD

Input

SD card detection pins

SDnWP

Input

SD write-protect signals

RA8M2 Datasheet

1. Overview

R01DS0438EJ0130 Rev.1.30

Feb 27, 2026

Page 17 of 295

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