Datasheet

 2011-2013 Microchip Technology Inc. DS70657G-page 363
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
bit 5 Unimplemented: Read as ‘0’
bit 4 CREF: Comparator Reference Select bit (V
IN+ input)
(1)
1 = VIN+ input connects to internal CVREFIN voltage
0 = V
IN+ input connects to C4IN1+ pin
bit 3-2 Unimplemented: Read as ‘0’
bit 1-0 CCH<1:0>: Comparator Channel Select bits
(1)
11 = VIN- input of comparator connects to OA3/AN6
10 = V
IN- input of comparator connects to OA2/AN0
01 = V
IN- input of comparator connects to OA1/AN3
00 = V
IN- input of comparator connects to C4IN1-
REGISTER 25-3: CM4CON: COMPARATOR 4 CONTROL REGISTER (CONTINUED)
Note 1: Inputs that are selected and not available will be tied to VSS. See the “Pin Diagrams” section for available
inputs for each package.