RA4E2 datasheet(87/91 Pages) RENESAS

87 / 91 page

Note:

This applies to the number of cycles when access from the CPU does not conflict with the instruction fetching to the

external memory or bus access from other bus masters such as DTC or DMAC.

Table A3.2

Access cycles (1 of 3)

Peripherals

Address

Number of access cycles

ICLK = PCLK

ICLK > PCLK*1

Cycle

Unit

Related function

From

Read

Write

Read

Write

RMPU, TZF,

SRAM, BUS,

DMACn, DMA,

DTC, ICU

0x4000_0000

0x4000_6FFF

ICLK

Renesas Memory

Protection Unit,

TrustZone Filter,

SRAM Control,

BUS Control, Direct

memory access

controller n, DMAC

Module Activation,

DTC Control Register,

Interrupt Controller

CACHE

0x4000_7000

0x4000_7FFF

ICLK

CACHE

CPSCU, DBG,

FCACHE

0x4000_8000

0x4001_CFFF

ICLK

CPU System Security

Control Unit, Debug

Function, Flash Cache

SYSC

0x4001_E000

0x4001_E3FF

ICLK

System Control

SYSC

0x4001_E400

0x4001_E5FF

5 to 8

PCLKB

System Control

PORTn, PFS

0x4008_0000

0x4008_0FFF

2 to 5

2 to 4

PCLKB

Port n Control

Registers, Pmn Pin

Function Control

ELC, RTC, IWDT,

WDT, CAC

0x4008_2000

0x4008_3FFF

3 to 5

2 to 4

PCLKB

Event Link

Controller, Realtime

Clock, Independent

Watchdog Timer,

Watchdog

Timer, Clock

Frequency Accuracy

Measurement Circuit

MSTP

0x4008_4000

0x4008_4FFF

2 to 5

2 to 4

PCLKB

Module Stop Control

POEG

0x4008_A000

0x4008_AFFF

3 to 5

2 to 4

PCLKB

Port Output Enable

Module for GPT

USBFS

0x4009_0000

0x4009_03FF

3 to 6

3 to 5

PCLKB

USB 2.0 FS Module

USBFS

0x4009_0400

0x4009_04FF

1 to 4

1 to 3

PCLKB

USB 2.0 FS Module

SSIE0

0x4009_2000

0x4009_FFFF

2 to 5

2 to 4

PCLKB

SD Host Interface

0, Serial Sound

Interface Enhanced,

Inter-Integrated Circuit

n, Inter-Integrated

Circuit 0 Wake-up Unit

CEC

0x400A_C000

0x400A_CFFF

1 to 3

PCLKB

Consumer Electronics

Control

CANFD

0x400B_0000

0x400C_FFFF

2 to 5

2 to 4

PCLKB

CANFD Module

PSCU

0x400E_0000

0x400E_0FFF

2 to 5

2 to 4

PCLKB

Peripheral Security

Control Unit

AGTn

0x400E_8000

0x400E_8FFF

5 to 7

2 to 4

PCLKB

Low Power

Asynchronous

General purpose

Timer n

TSN

0x400F_3000

0x400F_3FFF

2 to 5

2 to 4

PCLKB

Temperature Sensor

CRC, DOC

0x4010_8000

0x4010_9FFF

2 to 5

2 to 4

PCLKA

CRC Calculator, Data

Operation Circuit

SCIn

0x4011_8000

0x4011_8FFF

5*2

4*2

2 to 5*2

2 to 4*2

PCLKA

Serial Communication

Interface n

SPIn

0x4011_A000

0x4011_AFFF

5*3

4*3

2 to 5*3

2 to 4*3

PCLKA

Serial Peripheral

Interface n

I3C

0x4011_F000

0x4011_FFFF

2 to 4

PCLKA

I3C Bus Interface

RA4E2 Datasheet

Appendix 3. I/O Registers

R01DS0413EJ0150 Rev.1.50

May 29, 2026

Page 87 of 91

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