27.6.2.7 Capture Operations
To enable and use capture operations, the event line into the TC must be enabled using the TC Event Input bit in the Event Control register (EVCTRL.TCEI). The capture channels to be used must also be enabled in the Capture Channel x Enable bit group in the Control C register (CTRLC.CPTENx) before capture can be performed.
To enable and use capture operations, the corresponding Capture Channel x Enable bit in the Control C register (CTRLC.CAPTENx) must be written to '1'.
Note: The RETRIGGER, COUNT and START event actions are available only on an event from the
Event System.