Datasheet

PIC24FJ128GC010 FAMILY

DS30009312B-page 388  2012-2013 Microchip Technology Inc.

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

— — — — — CVREFP CVREFM1 CVREFM0

bit 15 bit 8

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

CVREN CVROE CVRSS CVR4 CVR3 CVR2 CVR1 CVR0

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 15-11 Unimplemented: Read as ‘0’

bit 10 CVREFP: Comparator Voltage Reference Select bit (valid only when CREF is ‘1’)

1 =V

REF+ is used as a reference voltage to the comparators

0 = The CVRx (5-bit DAC) within this module provides the reference voltage to the comparators

bit 9-8 CVREFM<1:0>: Comparator Voltage Band Gap Reference Source Select bits

(valid only when CCH<1:0> = 11)

00 = Band gap voltage is provided as an input to the comparators

01 = Band gap voltage, divided by two, is provided as an input to the comparators

10 = Reserved

11 =VREF+ pin is provided as an input to the comparators

bit 7 CVREN: Comparator Voltage Reference Enable bit

1 =CVREF circuit is powered on

0 =CV

REF circuit is powered down

bit 6 CVROE: Comparator VREF Output Enable bit

1 =CVREF voltage level is output on the CVREF pin

0 =CV

REF voltage level is disconnected from the CVREF pin

bit 5 CVRSS: Comparator VREF Source Selection bit

1 = Comparator reference source, CVRSRC = VREF+ – VREF-

0 = Comparator reference source, CV

RSRC = AVDD – AVSS

bit 4-0 CVR<4:0>: Comparator VREF Value Selection bits

REF = (CVR<4:0>/32)  (CVRSRC)