Data Sheet

348
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
20.8.5 Event Control
Name: EVCTRL
Offset: 0x04
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 – EXTINTEOx [x=17..0]: External Interrupt x Event Output Enable
These bits indicate whether the event associated with the EXTINTx pin is enabled or not to generated for every
detection.
0: Event from pin EXTINTx is disabled.
1: Event from pin EXTINTx is enabled.
Bit 3130292827262524
AccessRRRRRRRR
Reset00000000
Bit 2322212019181716
EXTINTEO17 EXTINTEO16
AccessRRRRRRR/WR/W
Reset00000000
Bit 151413121110 9 8
EXTINTEO15 EXTINTEO14 EXTINTEO13 EXTINTEO12 EXTINTEO11 EXTINTEO10 EXTINTEO9 EXTINTEO8
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 76543210
EXTINTEO7 EXTINTEO6 EXTINTEO5 EXTINTEO4 EXTINTEO3 EXTINTEO2 EXTINTEO1 EXTINTEO0
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000