PIC24F04KA201 datasheet(160/224 Pages) MICROCHIP

160 / 224 page

PIC24F04KA201 FAMILY

DS39937B-page 158

Preliminary

CVRCON: COMPARATOR VOLTAGE REFERENCE CONTROL REGISTER

U-0

—

bit 15

bit 8

R/W-0

CVREN

CVROE

CVRR

CVRSS

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

=CVREF circuit powered on

=CVREF circuit powered down

bit 6

CVROE:

Comparator VREF Output Enable bit

=CVREF voltage level is output on CVREF pin

=CVREF voltage level is disconnected from CVREF pin

bit 5

CVRR:

Comparator VREF Range Selection bit

=CVRSRC range should be 0 to 0.625 CVRSRC with CVRSRC/24 step size

=CVRSRC range should be 0.25 to 0.719 CVRSRC with CVRSRC/32 step size

bit 4

CVRSS:

Comparator VREF Source Selection bit

= Comparator reference source CVRSRC = VREF+ – VREF-

= Comparator reference source CVRSRC = AVDD – AVSS

bit 3-0

CVR3:CVR0:

Comparator VREF Value Selection 0

≤ CVR<3:0> ≤ 15 bits

When CVRR = 1 and CVRSS = 0:

CVREF = (CVR<3:0>/24) * (CVRSRC)

When CVRR = 0 and CVRSS = 0:

CVREF = 1/4 (CVRSRC) + (CVR<3:0>/32) * (CVRSRC)

When CVRR = 1 and CVRSS = 1:

CVREF = ((CVR<3:0>/24) * (CVRSRC)) + VREF-

When CVRR = 0 and CVRSS = 1:

CVREF = (1/4 (CVRSRC) + (CVR<3:0>/32) * (CVRSRC)) + VREF-

PIC24F04KA201 Datasheet(PDF) 160 Page - Microchip Technology

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