33.5.5 Burst Average Mode
The Burst Average mode (ADMD = 011
) acts the same as the Average mode in most respects. The one way it differs is that it continuously retriggers ADC sampling until the ADCNT value is greater than or equal to ADRPT, even if Continuous Sampling mode (see 33.5.8 Continuous Sampling Mode) is not enabled. This allows for a threshold comparison on the average of a short burst of ADC samples.