Datasheet

PIC12F609/615/617/12HV609/615

DS41302D-page 72  2010 Microchip Technology Inc.

R/W-0 R-0 R/W-0 R/W-0 U-0 R/W-0 U-0 R/W-0

CMON COUT CMOE CMPOL — CMR — CMCH

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 CMON: Comparator Enable bit

1 = Comparator is enabled

0 = Comparator is disabled

bit 6 COUT: Comparator Output bit

If C1POL =

1 (inverted polarity):

COUT = 0 when CMVIN+ > CMVIN-

COUT = 1 when CMV

IN+ < CMVIN-

If C1POL =

0 (non-inverted polarity):

COUT = 1 when CMVIN+ > CMVIN-

COUT = 0 when CMV

IN+ < CMVIN-

bit 5 CMOE: Comparator Output Enable bit

1 = COUT is present on the COUT pin

(1)

0 = COUT is internal only

bit 4 CMPOL: Comparator Output Polarity Select bit

1 = COUT logic is inverted

0 = COUT logic is not inverted

bit 3 Unimplemented: Read as ‘0’

bit 2 CMR: Comparator Reference Select bit (non-inverting input)

1 = CMVIN+ connects to CMVREF output

0 = CMV

IN+ connects to CIN+ pin

bit 1 Unimplemented: Read as ‘0’

bit 0 CMCH: Comparator C1 Channel Select bit

0 = CMVIN- pin of the Comparator connects to CIN0-

1 = CMV

IN- pin of the Comparator connects to CIN1-

Note 1: Comparator output requires the following three conditions: CMOE = 1, CMON = 1 and corresponding port

TRIS bit = 0.