Data Sheet

352
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
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.
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.
Bit 3130292827262524
AccessRRRRRRRR
Reset00000000
Bit 2322212019181716
WAKEUPEN17 WAKEUPEN16
AccessRRRRRRR/WR/W
Reset00000000
Bit 151413121110 9 8
WAKEUPEN15 WAKEUPEN14 WAKEUPEN13 WAKEUPEN12 WAKEUPEN11 WAKEUPEN10 WAKEUPEN9 WAKEUPEN8
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 76543210
WAKEUPEN7 WAKEUPEN6 WAKEUPEN5 WAKEUPEN4 WAKEUPEN3 WAKEUPEN2 WAKEUPEN1 WAKEUPEN0
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000