PM0056 datasheet(114/156 Pages) STMICROELECTRONICS

номер детали	PM0056

подробное описание детали	This programming manual provides information

PDF	156 Pages

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Core peripherals

PM0056

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DocID15491 Rev 5

4.2.8

MPU region base address register (MPU_RBAR)

Address offset: 0x0C

Reset value: 0x0000 0000

Required privilege: Privileged

The MPU_RBAR register defines the base address of the MPU region selected by the

MPU_RNR register, and can update the value of the MPU_RNR register.

Write to the MPU_RBAR register with the VALID bit set to 1 to change the current region

number and update the MPU_RNR register.

Bits 31:8

Reserved, forced by hardware to 0.

Bits 7:0

REGION[7:0]: MPU region

These bits indicate the MPU region referenced by the MPU_RBAR and MPU_RASR registers.

The MPU supports 8 memory regions, so the permitted values of this field are 0-7.

Normally, you write the required region number to this register before accessing the

MPU_RBAR or MPU_RASR. However you can change the region number by writing to the

MPU_RBAR register with the VALID bit set to 1, see MPU region base address register

(MPU_RBAR). This write updates the value of the REGION field.

3029

ADDR[31:N]...

....ADDR[31:N]

VALID

REGION[3:0]

PM0056 датащи(PDF) 114 Page - STMicroelectronics