Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
341
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
20.8.9 Wake-Up Enable
Name:
WAKEUP
Offset:
0x14
Reset:
0x00000000
Property:
Write-Protected
z
Bits 31:18 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z
Bits 17:0 – WAKEUPENx [x=17..0]: External Interrupt x Wake-up Enable
This bit enables or disables wake-up from sleep modes when the EXTINTx pin matches the external interrupt
sense configuration.
0: Wake-up from the EXTINTx pin is disabled.
1: Wake-up from the EXTINTx pin is enabled.
This bit enables or disables wake-up from sleep modes when the EXTINTx pin matches the external interrupt
sense configuration.
0: Wake-up from the EXTINTx pin is disabled.
1: Wake-up from the EXTINTx pin is enabled.
Bit
31
30
29
28
27
26
25
24
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Bit
23
22
21
20
19
18
17
16
WAKEUPEN17
WAKEUPEN16
Access
R
R
R
R
R
R
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
WAKEUPEN15
WAKEUPEN14
WAKEUPEN13
WAKEUPEN12
WAKEUPEN11
WAKEUPEN10
WAKEUPEN9
WAKEUPEN8
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
WAKEUPEN7
WAKEUPEN6
WAKEUPEN5
WAKEUPEN4
WAKEUPEN3
WAKEUPEN2
WAKEUPEN1
WAKEUPEN0
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0