This chart shows the AD conversion time if AD Clock = PCLK. A complete scan will consist of one start-of-scanning delay plus N conversion times as the enabled channels are converted. At the end of the conversion there is a single end-of-scanning delay. When a continuous scan is selected only the first scan has a start-of-scanning delay time so the subsequent conversions are just equal to tCONV multiplied by the number of channels being converted.