Datasheet

PIC24FV32KA304 FAMILY
DS30009995E-page 230  2011-2017 Microchip Technology Inc.
REGISTER 24-1: CVRCON: COMPARATOR VOLTAGE REFERENCE CONTROL REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
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 15-8
Unimplemented: Read as ‘0’
bit 7 CVREN: Comparator Voltage Reference Enable bit
1 =CV REF circuit is powered on
0 =CV
REF circuit is powered down
bit 6 CVROE: Comparator V REF Output Enable bit
1 =CV REF voltage level is output on the CV REF pin
0 =CV
REF voltage level is disconnected from the CV REF pin
bit 5
CVRSS: Comparator V REF Source Selection bit
1 = Comparator reference source, CV
RSRC = V REF + – V REF -
0 = Comparator reference source, CV
RSRC = AV DD – AV SS
bit 4-0 CVR<4:0>: Comparator V REF Value Selection 0 ≤ CVR<4:0> ≤ 31 bits
When CVRSS = 1:
CV REF = (V REF -) + (CVR<4:0>/32) • (V REF + – V REF -)
When CVRSS = 0:
CV REF = (AV SS ) + (CVR<4:0>/32) • (AV DD – AV SS )