One Extra Measurement Performed After Disabling ADC Free-Running Mode

The ADC may perform one additional measurement after clearing ADCn.CTRLA.FREERUN.

Work around

Write ADCn.CTRLA.ENABLE to ‘0’ to stop the Free-Running mode immediately.

Affected Silicon Revisions

ATtiny1616
Rev. A            
X            
ATtiny3216
Rev. A Rev. B Rev. C          
* * X