PIC16(L)F18425/45

34.6 Comparator Positive Input Selection

Configuring the PCH bits in the CMxPCH register direct an internal voltage reference or an analog pin to the noninverting input of the comparator:

CxINy+ analog pin
DAC output
Fixed Voltage Reference (FVR)

Important: To use CxINy+ pins as analog input, the appropriate bits must be set in the ANSEL register and the corresponding TRIS bits must also be set to disable the output drivers.

Any time the comparator is disabled (CxEN = 0), all comparator inputs are disabled.

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