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SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
14.5.1 Reset Controller Control Register
Name:
RSTC_CR
Address:
0x400E1400
Access:
Write-only
• PROCRST: Processor Reset
0 = No effect.
1 = If KEY is correct, resets the processor.
• PERRST: Peripheral Reset
0 = No effect.
1 = If KEY is correct, resets the peripherals.
• EXTRST: External Reset
0 = No effect.
1 = If KEY is correct, asserts the NRST pin and resets the processor and the peripherals.
• KEY: System Reset Key
Should be written at value 0xA5. Writing any other value in this field aborts the write operation.
31
30
29
28
27
26
25
24
KEY
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
EXTRST
PERRST
PROCRST