33.7.4 Event Control

Name: EVCTRL
Offset: 0x06
Reset: 0x0000
Property: PAC Write-Protection, Enable-Protected

Bit 15141312111098 
   MCEO1MCEO0   OVFEO 
Access R/WR/WR/W 
Reset 000 
Bit 76543210 
   TCEITCINV EVACT[2:0] 
Access R/WR/WR/WR/WR/W 
Reset 00000 

Bits 12, 13 – 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.

ValueDescription
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.

ValueDescription
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.

ValueDescription
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.

ValueDescription
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.

ValueNameDescription
0x0 OFF Event action disabled
0x1 RETRIGGER Start, restart or retrigger TC on event
0x2 COUNT Count on event (not a valid selection for waveform generation)
0x3 START Start TC on event
0x4 STAMP Time stamp capture
0x5 PPW Period captured in CC0, pulse width in CC1
0x6 PWP Period captured in CC1, pulse width in CC0
0x7 PW Pulse width capture