Up to eight analog input channels, CH[n](n=0..7), can be configured.
See Shared resources for shared input with comparators.
Any of the available channels can be enabled for the ADC to operate in One-shot mode. If more than one CH[n] is configured, the ADC enters Scan mode.
An analog input is selected as a positive converter input if CH[n].PSELP is set, setting CH[n].PSELP also enables the particular channel.
An analog input is selected as a negative converter input if CH[n].PSELN is set. The CH[n].PSELN register will have no effect unless Differential mode is enabled, see MODE field in the CH[n].CONFIG register.
If more than one of the CH[n].PSELP registers is set, the device enters Scan mode. Input selections in Scan mode are controlled by the CH[n].PSELP and CH[n].PSELN registers, where CH[n].PSELN is only used if the particular scan channel is specified as differential, see MODE field in the CH[n].CONFIG register.