I/O Lines

The EVSYS can output three event channels asynchronously on pins. The output signals are called EVOUT[2:0].
  1. 1.Configure which event channel (one of SYNCCH[1:0] or ASYNCCH[3:0]) is output on which the EVOUTn by writing to EVSYS.ASYNCUSER10, EVSYS.ASYNCUSER9 or EVSYS.ASYNCUSER8 respectively.
  2. 2.Optional: configure the pin properties using the PORT peripheral.
  3. 3.Enable the pin output by writing '1' to the respective EVOUTn bit in the Control A register of the PORTMUX peripheral (PORTMUX.CTRLA).