20.3.4 Events

The peripheral can take the following actions on an input Event:

• The counter counts positive edges of the Event signal.
• The counter counts both positive and negative edges of the Event signal.
• The counter counts prescaled clock cycles as long as the Event signal is high.
• The counter counts prescaled clock cycles. Event signal controls the direction of counting. Up-count when Event signal is low, down-count when Event signal is high.

The specific action is selected by writing to the Event Action bits (EVACT) in the Event Control register (TCA.EVCTRL). Events as input are enabled by writing a '1' to the Enable Count on Event Input bit (CNTEI in TCA.EVCTRL).

Event controlled operation is not available in Split Mode.