In Average mode (
MD =
'b010), the
ADACC registers accumulate with each ADC sample, much as in Accumulate mode,
and the ADCNT register increments with each sample. The
ADFLTR register is also updated with the right-shifted value of the ADACC
register. The value of the
CRS bits governs the number of right shifts. However, in Average mode, the
threshold comparison is performed upon ADCNT being greater than or equal to a
user-defined
ADRPT value. In this mode when ADRPT = 2^
CRS, then the final accumulated value will be divided by the number of
samples, allowing for a threshold comparison operation on the average of all gathered
samples.