41594B datasheet(155/372 Pages) MICROCHIP

155 / 372 page

 2011-2012 Microchip Technology Inc.

Preliminary

DS41594B-page 155

PIC12LF1840T48A

CM1CON0: COMPARATOR C1 CONTROL REGISTER 0

R/W-0/0

R-0/0

R/W-0/0

U-0

R/W-1/1

R/W-0/0

C1ON

C1OUT

C1OE

C1POL

—

C1SP

C1HYS

C1SYNC

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

bit 7

C1ON: Comparator Enable bit

1 = Comparator is enabled and consumes no active power

0 = Comparator is disabled

bit 6

C1OUT: Comparator Output bit

If C1POL = 1 (inverted polarity):

1 = C1VP < C1VN

0 = C1VP > C1VN

If C1POL = 0 (non-inverted polarity):

1 = C1VP > C1VN

0 = C1VP < C1VN

bit 5

C1OE: Comparator Output Enable bit

1 = C1OUT is present on the C1OUT pin. Requires that the associated TRIS bit be cleared to actually

drive the pin. Not affected by C1ON.

0 = C1OUT is internal only

bit 4

C1POL: Comparator Output Polarity Select bit

1 = Comparator output is inverted

0 = Comparator output is not inverted

bit 3

Unimplemented: Read as ‘0’

bit 2

C1SP: Comparator Speed/Power Select bit

1 = Comparator operates in normal power, higher speed mode

0 = Comparator operates in low-power, low-speed mode

bit 1

C1HYS: Comparator Hysteresis Enable bit

1 = Comparator hysteresis enabled

0 = Comparator hysteresis disabled

bit 0

C1SYNC: Comparator Output Synchronous Mode bit

1 = Comparator output to Timer1 and I/O pin is synchronous to changes on Timer1 clock source.

Output updated on the falling edge of Timer1 clock source.

0 = Comparator output to Timer1 and I/O pin is asynchronous.

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