Datasheet
2010 Microchip Technology Inc. DS39969B-page 339
PIC24FJ256DA210 FAMILY
bit 4 CREF: Comparator Reference Select bits (non-inverting input)
1 = Non-inverting input connects to the internal CVREF voltage
0 = Non-inverting input connects to the C
XINA pin
bit 3-2 Unimplemented: Read as ‘0’
bit 1-0 CCH<1:0>: Comparator Channel Select bits
11 = Inverting input of the comparator connects to the internal selectable reference voltage specified by
the CVREFM<1:0> bits in the CVRCON register
10 = Inverting input of the comparator connects to the C
XIND pin
01 = Inverting input of the comparator connects to the C
XINC pin
00 = Inverting input of the comparator connects to the C
XINB pin
REGISTER 24-1: CMxCON: COMPARATOR x CONTROL REGISTERS (COMPARATORS 1
THROUGH 3) (CONTINUED)
REGISTER 24-2: CMSTAT: COMPARATOR MODULE STATUS REGISTER
R/W-0 U-0 U-0 U-0 U-0 R-0, HSC R-0, HSC R-0, HSC
CMIDL — — — — C3EVT C2EVT C1EVT
bit 15 bit 8
U-0 U-0 U-0 U-0 U-0 R-0, HSC R-0, HSC R-0, HSC
— — — — — C3OUT C2OUT C1OUT
bit 7 bit 0
Legend: HSC = Hardware Settable/Clearable bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 CMIDL: Comparator Stop in Idle Mode bit
1 = Discontinue operation of all comparators when device enters Idle mode
0 = Continue operation of all enabled comparators in Idle mode
bit 14-11 Unimplemented: Read as ‘0’
bit 10 C3EVT: Comparator 3 Event Status bit (read-only)
Shows the current event status of Comparator 3 (CM3CON<9>).
bit 9 C2EVT: Comparator 2 Event Status bit (read-only)
Shows the current event status of Comparator 2 (CM2CON<9>).
bit 8 C1EVT: Comparator 1 Event Status bit (read-only)
Shows the current event status of Comparator 1 (CM1CON<9>).
bit 7-3 Unimplemented: Read as ‘0’
bit 2 C3OUT: Comparator 3 Output Status bit (read-only)
Shows the current output of Comparator 3 (CM3CON<8>).
bit 1 C2OUT: Comparator 2 Output Status bit (read-only)
Shows the current output of Comparator 2 (CM2CON<8>).
bit 0 C1OUT: Comparator 1 Output Status bit (read-only)
Shows the current output of Comparator 1 (CM1CON<8>).