Data Sheet

353
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
20.8.10 Configuration n
Name: CONFIGn
Offset: 0x18+n*0x4 [n=0..2]
Reset: 0x00000000
Property: Write-Protected
z Bits 31, 27, 23, 19, 15, 11, 7 – FILTENx: Filter 0 Enable
0: Filter is disabled for EXTINT[n*8+x] input.
1: Filter is enabled for EXTINT[n*8+x] input.
z Bits 30:28, 26:24, 22:20, 18:16, 14:12, 10:8, 6:4 – SENSEx: Input Sense 0 Configuration
These bits define on which edge or level the interrupt or event for EXTINT[n*8+x] will be generated.
Table 20-5. Input Sense 0 Configuration
Bit 3130292827262524
FILTEN7 SENSE7[2:0] FILTEN6 SENSE6[2:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 2322212019181716
FILTEN5 SENSE5[2:0] FILTEN4 SENSE4[2:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 151413121110 9 8
FILTEN3 SENSE3[2:0] FILTEN2 SENSE2[2:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 76543210
FILTEN1 SENSE1[2:0] FILTEN0 SENSE0[2:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
SENSE0[2:0] Name Description
0x0 NONE No detection
0x1 RISE Rising-edge detection
0x2 FALL Falling-edge detection
0x3 BOTH Both-edges detection