Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Hoja De Datos

 221

SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

MPU_TYPE

Access: Read-write

Reset: 0x00000800 

The MPU_TYPE register indicates whether the MPU is present, and if so, how many regions it supports.

Indicates the number of supported MPU instruction regions.

Always contains 0x00. The MPU memory map is unified and is described by the DREGION field.

Indicates the number of supported MPU data regions: 

0x08 = Eight MPU regions.

Indicates support for unified or separate instruction and date memory maps:

0: Unified.

31

30

29

28

27

26

25

24

–

23

22

21

20

19

18

17

16

IREGION

15

14

13

12

11

10

9

8

DREGION

7

6

5

4

3

2

1

0

–

SEPARATE