Data Sheet

351
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
20.8.8 Interrupt Flag Status and Clear
Name: INTFLAG
Offset: 0x10
Reset: 0x00000000
Property: -
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 – EXTINTx [x=17..0]: External Interrupt x
This flag is cleared by writing a one to it.
This flag is set when EXTINTx pin matches the external interrupt sense configuration and will generate an interrupt
request if INTENCLR/SET.EXTINT[x] is one.
Writing a zero to this bit has no effect.
Writing a one to this bit clears the External Interrupt x flag.
Bit 3130292827262524
AccessRRRRRRRR
Reset00000000
Bit 2322212019181716
EXTINT17 EXTINT16
AccessRRRRRRR/WR/W
Reset00000000
Bit 151413121110 9 8
EXTINT15 EXTINT14 EXTINT13 EXTINT12 EXTINT11 EXTINT10 EXTINT9 EXTINT8
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 76543210
EXTINT7 EXTINT6 EXTINT5 EXTINT4 EXTINT3 EXTINT2 EXTINT1 EXTINT0
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000