PIC16F883 datasheet(94/338 Pages) MICROCHIP

94 / 338 page

PIC16F882/883/884/886/887

DS41291G-page 94

 2006-2012 Microchip Technology Inc.

CM2CON0: COMPARATOR C2 CONTROL REGISTER 0

R/W-0

R-0

R/W-0

U-0

R/W-0

C2ON

C2OUT

C2OE

C2POL

—

C2R

C2CH1

C2CH0

bit 7

bit 0

Legend:

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 7

C2ON: Comparator C2 Enable bit

1 = Comparator C2 is enabled

0 = Comparator C2 is disabled

bit 6

C2OUT: Comparator C2 Output bit

If C2POL = 1 (inverted polarity):

C2OUT = 0 when C2VIN+ > C2VIN-

C2OUT = 1 when C2VIN+ < C2VIN-

If C2POL = 0 (non-inverted polarity):

C2OUT = 1 when C2VIN+ > C2VIN-

C2OUT = 0 when C2VIN+ < C2VIN-

bit 5

C2OE: Comparator C2 Output Enable bit

1 = C2OUT is present on C2OUT pin(1)

0 = C2OUT is internal only

bit 4

C2POL: Comparator C2 Output Polarity Select bit

1 = C2OUT logic is inverted

0 = C2OUT logic is not inverted

bit 3

Unimplemented: Read as ‘0’

bit 2

C2R: Comparator C2 Reference Select bits (non-inverting input)

1 = C2VIN+ connects to C2VREF

0 = C2VIN+ connects to C2IN+ pin

bit 1-0

C2CH<1:0>: Comparator C2 Channel Select bits

00 = C12IN0- pin of C2 connects to C2VIN-

01 = C12IN1- pin of C2 connects to C2VIN-

10 = C12IN2- pin of C2 connects to C2VIN-

11 = C12IN3- pin of C2 connects to C2VIN-

Note 1:

Comparator output requires the following three conditions: C2OE = 1, C2ON = 1 and corresponding port

TRIS bit = 0.

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