69
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
13.4.2
Reset Controller Status Register
Register Name:
RSTC_SR
Access Type:
Read-only
URSTS: User Reset Status
0 = No high-to-low edge on NRST happened since the last read of RSTC_SR.
1 = At least one high-to-low transition of NRST has been detected since the last read of RSTC_SR.
BODSTS: Brownout Detection Status
0 = No brownout high-to-low transition happened since the last read of RSTC_SR.
1 = A brownout high-to-low transition has been detected since the last read of RSTC_SR.
RSTTYP: Reset Type
Reports the cause of the last processor reset. Reading this RSTC_SR does not reset this field.
NRSTL: NRST Pin Level
Registers the NRST Pin Level at Master Clock (MCK).
SRCMP: Software Reset Command in Progress
0 = No software command is being performed by the reset controller. The reset controller is ready for a software command.
1 = A software reset command is being performed by the reset controller. The reset controller is busy.
31
30
29
28
27
26
25
24
––––––––
23
22
21
20
19
18
17
16
––––––
SRCMP
NRSTL
15
14
13
12
11
10
9
8
–––––
RSTTYP
76543210
––––––
BODSTS
URSTS
RSTTYP
Reset Type
Comments
0
Power-up Reset
VDDCORE rising
0
1
0
Watchdog Reset
Watchdog fault occurred
0
1
Software Reset
Processor reset required by the software
1
0
User Reset
NRST pin detected low
1
0
1
Brownout Reset
BrownOut reset occurred
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