To improve conversion timing and further offload work from the CPU, the ADC is connected to the XMEGA Event System. This makes it possible to use incoming events to trigger single conversions or conversion sweeps across several channels. The ADC conversion complete conditions also serve as event sources available for other peripheral modules connected to the event system.
For more information, refer to the device data sheet or the “AVR1001: Getting Started with the XMEGA Event System” application note.