32.7 Comparator Negative Input Selection
The NCH bits direct an analog input pin and internal reference voltage or analog ground to the inverting input of the comparator:
| NCH | Negative Input Sources |
|---|---|
| 111 | AVSS |
| 110 | FVR_Buffer2 |
| 101 | CxNCH not connected |
| 100 | CxNCH not connected |
| 011 | CxIN3- |
| 010 | CxIN2- |
| 001 | CxIN1- |
| 000 | CxIN0- |
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.