SAM7X128_14 Datasheet, PDF (67/662 Pages) ATMEL Corporation – ARM-based Flash MCU

13.3.2 Reset Controller Status Register
Register Name:
RSTC_SR
Access Type:
Read-only
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
7
6
5
4
3
2
1
0
–
–
–
–
–
–
BODSTS
URSTS
• 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.
RSTTYP
0
0
0
0
1
0
0
1
1
1
0
0
1
0
1
Reset Type
Power-up Reset
Watchdog Reset
Software Reset
User Reset
Brownout Reset
Comments
VDDCORE rising
Watchdog fault occurred
Processor reset required by the software
NRST pin detected low
Brownout reset occurred
• 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.
SAM7X Series [DATASHEET] 67
6120K–ATARM–11-Feb-14