Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

258

The minimum permitted value is 3 (b00010).
The SIZE field defines the size of the MPU memory region specified by the MPU_RNR. as follows:

(Region size in bytes) = 2

(SIZE+1)

The smallest permitted region size is 32B, corresponding to a SIZE value of 4. The table below gives an example of SIZE 

values, with the corresponding region size and value of N in the MPU_RBAR.

Note:

1. In the MPU_RBAR; see 

Note: For information about access permission, see 

b00100 (4)

32 B

5

Minimum permitted size

b01001 (9)

1 KB

10

–

b10011 (19)

1 MB

20

–

b11101 (29)

1 GB

30

–

b11111 (31)

4 GB

b01100

Maximum possible size