Configuring the PCH bits direct an internal voltage reference or an analog pin to the non-inverting input of the comparator:
PCH | Positive Input Source |
---|---|
111 | AVSS |
110 | FVR_Buffer2 |
101 | DAC_Output |
100 | CxPCH not connected |
011 | CxPCH not connected |
010 | CxPCH not connected |
001 | CxIN1+ |
000 | CxIN0+ |
See Fixed Voltage Reference (FVR) for more information on the Fixed Voltage Reference module.
See 5-Bit Digital-to-Analog Converter (DAC) module for more information on the DAC input signal.
Any time the comparator is disabled (CxEN = 0
), all comparator inputs are disabled.