Atmel SAM4S-EK2 Atmel ATSAM4S-EK2 ATSAM4S-EK2 Ficha De Dados
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Códigos do produto
ATSAM4S-EK2
286
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
17.5.3 Watchdog Timer Status Register
Register Name:
WDT_SR
Address:
0x400E1458
Access Type:
Read-only
• WDUNF: Watchdog Underflow
0: No Watchdog underflow occurred since the last read of WDT_SR.
1: At least one Watchdog underflow occurred since the last read of WDT_SR.
• WDERR: Watchdog Error
0: No Watchdog error occurred since the last read of WDT_SR.
1: At least one Watchdog error occurred since the last read of WDT_SR.
Note:
The WDD and WDV values must not be modified within a period of time of 3 slow clock periods following a restart of
the watchdog performed by means of a write access in the WDT_CR register, else the watchdog may trigger an end
of period earlier than expected.
the watchdog performed by means of a write access in the WDT_CR register, else the watchdog may trigger an end
of period earlier than expected.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
–
–
–
–
WDERR
WDUNF