Техническая Спецификация для Atmel SAM4S Xplained Pro Starter and Evaluation Kit ATSAM4S-XPRO ATSAM4S-XPRO
Модели
ATSAM4S-XPRO
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