Datasheet

22
6430FS–ATARM–10-Feb-12
SAM3U Series
5.6 Wake-up Sources
The wake-up events allow the device to exit backup mode. When a wake-up event is detected,
the Supply Controller performs a sequence which automatically reenables the core power
supply.
Figure 5-4. Wake-up Source
WKUP15
FWUP
rtt_alarm
rtc_alarm
sm_int
WKUP0
WKUP1
WKUPT1
Core
Supply
Restart
Debouncer
WKUPDBC
WKUPS
Debouncer
FWUPDBC
FWUP
WKUPIS0
WKUPIS1
WKUPIS15
RTTEN
RTCEN
SMEN
WKUPEN15
WKUPEN1
WKUPEN0
FWUPEN
WKUPT15
Falling/Rising
Edge
Detector
WKUPT0
Falling/Rising
Edge
Detector
Falling/Rising
Edge
Detector
Falling
Edge
Detector
SLCK
SLCK