Datasheet

30.8.7 Event Control
Name: EVCTRL
Offset: 0x0A
Reset: 0x0000
Property: PAC Write-Protection, Enable-Protected
Bit 15 14 13 12 11 10 9 8
MCEOx MCEOx OVFEO
Access
R/W R/W R/W
Reset 0 0 0
Bit 7 6 5 4 3 2 1 0
TCEI TCINV EVACT[2:0]
Access
R/W R/W R/W R/W R/W
Reset 0 0 0 0 0
Bits 13,12 – MCEOx Match or Capture Channel x Event Output Enable [x = 1..0]
These bits enable the generation of an event for every match or capture on channel x.
Value Description
0
Match/Capture event on channel x is disabled and will not be generated.
1
Match/Capture event on channel x is enabled and will be generated for every compare/
capture.
Bit 8 – OVFEO Overflow/Underflow Event Output Enable
This bit enables the Overflow/Underflow event. When enabled, an event will be generated when the
counter overflows/underflows.
Value Description
0
Overflow/Underflow event is disabled and will not be generated.
1
Overflow/Underflow event is enabled and will be generated for every counter overflow/
underflow.
Bit 5 – TCEI TC Event Enable
This bit is used to enable asynchronous input events to the TC.
Value Description
0
Incoming events are disabled.
1
Incoming events are enabled.
Bit 4 – TCINV TC Inverted Event Input Polarity
This bit inverts the asynchronous input event source.
Value Description
0
Input event source is not inverted.
1
Input event source is inverted.
Bits 2:0 – EVACT[2:0] Event Action
These bits define the event action the TC will perform on an event.
SAM D21 Family
TC – Timer/Counter
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 691