116
6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
16.2.4
SF Protect Mode Register
Register Name:
SF_PMR
Access Type:
Read/Write
Reset Value:
0
Offset:
0x18
• PMRKEY: Protect Mode Register Key (Code Label
SF_PMRKEY
)
Used only when writing SF_PMR. PMRKEY is reads 0.
0x27A8: Write access in SF_PMR is allowed.
Other value: Write access in SF_PMR is prohibited.
• AIC: AIC Protect Mode Enable (Code Label
SF_AIC
)
0 = The Advanced Interrupt Controller runs in Normal Mode.
1 = The Advanced Interrupt Controller runs in Protect Mode.
See
Section 13.10 ”Protect Mode”, on page 78
.
31
30
29
28
27
26
25
24
PMRKEY
23
22
21
20
19
18
17
16
PMRKEY
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
AIC
–
–
–
–
–