SAM3A4C Atmel Corporation, SAM3A4C Datasheet - Page 197

• Manufacturer Part Number: SAM3A4C
• Manufacturer: Atmel Corporation

11.23.1
• IREGION
Indicates the number of supported MPU instruction regions.
Always contains 0x00. The MPU memory map is unified and is described by the DREGION field.
• DREGION
Indicates the number of supported MPU data regions:
0x08 = Eight MPU regions.
• SEPARATE
Indicates support for unified or separate instruction and date memory maps:
0: unified.
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
31
23
15
7
MPU Type Register
30
22
14
6
The TYPE register indicates whether the MPU is present, and if so, how many regions it sup-
ports. See the register summary in
assignments are:
29
21
13
5
Reserved
28
20
12
4
DREGION
Reserved
IREGION
Table 11-35 on page 196
27
19
11
3
26
18
10
2
for its attributes. The bit
25
17
9
1
SAM3X/A
SAM3X/A
SEPARATE
24
16
8
0
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