SAM4L Datasheet, PDF (148/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
11.6.9 Backup Wake up Cause Register
Name:
BKUPWCAUSE
Access Type:
Read-only
Offset:
0x0028
Reset Value:
Latest Wake up Source from Backup mode
31
30
29
28
27
26
25
24
BKUPWC[31:24]
23
22
21
20
19
18
17
16
BKUPWC[23:16]
15
14
13
12
11
10
9
8
BKUPWC[15:8]
7
6
5
4
3
2
1
0
BKUPWC[7:0]
A bit in this register is set when the system is waking up from the Backup mode and the wake up source is caused by the
peripheral referred to in Table 11-3 on page 148.
Table 11-3.
Bit
0
1
2
3
4
5
31:6
Backup Wake up Cause
Wake Cause
EIC
AST
WDT interrupt
BOD33 interrupt
BOD18 interrupt
PICOUART interrupt
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