Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Fiche De Données
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Codes de produits
ATSAM4S-WPIR-RD
261
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
• SIZE: Size of the MPU Protection Region
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:
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
• ENABLE: Region Enable
Note: For information about access permission, see
SIZE Value
Region Size
Value of N
Note
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