Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK Data Sheet

Product codes
AT91SAM9G25-EK
Page of 1102
158
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
17.5.3 Watchdog Timer Status Register
Register Name:
WDT_SR
Address:
0xFFFFFE48
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.
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WDERR
WDUNF