The Peripheral Event Controller module contains Event Shapers (EVS) for external inputs and general purpose waveforms (i.e. timer outputs or Generic Clocks) that require synchronisation and/or edge detection prior to peripheral event propagation.
Each Event Shaper is responsible for shaping one generator input prior to it going through an Event Channel.
Refer to the module configuration section at the end of the Peripheral Event Controller (PEVC) section in the device datasheet for the specific configuration of Event Shapers and Input Glitch Filters.