Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
284
14.5.2 Reset Controller Status Register
Name:
RSTC_SR
Address:
0x400E1404
Access:
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.
1: At least one high-to-low transition of NRST 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.
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
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
URSTS
Value
Name
Description
0
GENERAL_RST
First power-up Reset
1
BACKUP_RST
Return from Backup Mode
2
WDT_RST
Watchdog fault occurred
3
SOFT_RST
Processor reset required by the software
4
USER_RST
NRST pin detected low