Data Sheet

708
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
30.8.10 Event Control
Name: EVCTRL
Offset: 0x20
Reset: 0x00000000
Property: Write-Protected
z Bits 31:28 – 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 27:24 – MCEOx [x=3..0]: Match or Capture Channel x Event Output Enable
These bits control if the Match/capture event on channel x is enabled and will be generated for every match or
capture.
0: Match/capture x event is disabled and will not be generated.
1: Match/capture x event is enabled and will be generated for every compare/capture on channel x.
z Bits 23:20 – 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 19:16 – MCEIx [x=3..0]: Match or Capture Channel x Event Input Enable
These bits indicate if the Match/capture x incoming event is enabled
These bits are used to enable match or capture input events to the CCx channel of TCC.
0: Incoming events are disabled.
1: Incoming events are enabled.
Bit 3130292827262524
MCEO3 MCEO2 MCEO1 MCEO0
AccessRRRRR/WR/WR/WR/W
Reset00000000
Bit 2322212019181716
MCEI3 MCEI2 MCEI1 MCEI0
AccessRRRRR/WR/WR/WR/W
Reset00000000
Bit 151413121110 9 8
TCEI1 TCEI0 TCINV1 TCINV0
CNTEO TRGEO OVFEO
Access R/W R/W R/W R/W R R/W R/W R/W
Reset00000000
Bit 76543210
CNTSEL[1:0] EVACT1[2:0] EVACT0[2:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000