25.4.2 Operation

The EIC detects edge or level condition to generate interrupts to the CPU interrupt controller or events to the Event System (EVSYS). Each interrupt line can be individually masked and can generate an interrupt on rising, falling, or both edges, or on high or low levels. Each external interrupt pin (EXTINT) has a configurable filter to remove spikes.

Each external pin can also be configured to be asynchronous to wake up the device from sleep modes where all clocks have been disabled.