Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
246
12.11.2.1MPU Type Register
Name:
MPU_TYPE
Access:
Read
/Write
Reset:
0x00
000800
The MPU_TYPE register indicates whether the MPU is present, and if so, how many regions it supports.
• IREGION: Instruction Region
Indicates the number of supported MPU instruction regions.
Always contains 0x00. The MPU memory map is unified and is described by the DREGION field.
Always contains 0x00. The MPU memory map is unified and is described by the DREGION field.
• DREGION: Data Region
Indicates the number of supported MPU data regions:
0x08 = Eight MPU regions.
0x08 = Eight MPU regions.
• SEPARATE: Separate Instruction
Indicates support for unified or separate instruction and date memory maps:
0: Unified.
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