PIC24FJ256GB108-I Datasheet, PDF (279/352 Pages) Microchip Technology – 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)

PIC24FJ256GB110 FAMILY
REGISTER 23-1: CMxCON: COMPARATOR x CONTROL REGISTERS (COMPARATORS 1
THROUGH 3)
R/W-0
R/W-0
R/W-0
U-0
U-0
U-0
R/W-0
R-0
CEN
COE
CPOL
—
—
—
CEVT
COUT
bit 15
bit 8
R/W-0
R/W-0
U-0
R/W-0
U-0
EVPOL1
EVPOL0
—
CREF
—
bit 7
U-0
R/W-0
R/W-0
—
CCH1
CCH0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
bit 14
bit 13
bit 12-10
bit 9
bit 8
bit 7-6
bit 5
CEN: Comparator Enable bit
1 = Comparator is enabled
0 = Comparator is disabled
COE: Comparator Output Enable bit
1 = Comparator output is present on the CxOUT pin.
0 = Comparator output is internal only
CPOL: Comparator Output Polarity Select bit
1 = Comparator output is inverted
0 = Comparator output is not inverted
Unimplemented: Read as ‘0’
CEVT: Comparator Event bit
1 = Comparator event defined by EVPOL<1:0> has occurred; subsequent triggers and interrupts are
disabled until the bit is cleared
0 = Comparator event has not occurred
COUT: Comparator Output bit
When CPOL = 0:
1 = VIN+ > VIN-
0 = VIN+ < VIN-
When CPOL = 1:
1 = VIN+ < VIN-
0 = VIN+ > VIN-
EVPOL<1:0>: Trigger/Event/Interrupt Polarity Select bits
11 = Trigger/event/interrupt generated on any change of the comparator output (while CEVT = 0)
10 = Trigger/event/interrupt generated on transition of the comparator output:
If CPOL = 0 (non-inverted polarity):
High-to-low transition only.
If CPOL = 1 (inverted polarity):
Low-to-high transition only.
01 = Trigger/event/interrupt generated on transition of comparator output:
If CPOL = 0 (non-inverted polarity):
Low-to-high transition only.
If CPOL = 1 (inverted polarity):
High-to-low transition only.
00 = Trigger/event/interrupt generation is disabled
Unimplemented: Read as ‘0’
 2009 Microchip Technology Inc.
DS39897C-page 279