Datasheet

 2011-2013 Microchip Technology Inc. DS39995D-page 229
PIC24FV32KA304 FAMILY
24.0 COMPARATOR VOLTAGE
REFERENCE
24.1 Configuring the Comparator
Voltage Reference
The comparator voltage reference module is controlled
through the CVRCON register (Register 24-1). The
comparator voltage reference provides a range of
output voltages, with 32 distinct levels.
The comparator voltage reference supply voltage can
come from either V
DD and VSS or the external VREF+
and V
REF-. The voltage source is selected by the
CVRSS bit (CVRCON<5>).
The settling time of the comparator voltage reference
must be considered when changing the CV
REF output.
FIGURE 24-1: COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
Note: This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive refer-
ence source. For more information on the
Comparator Voltage Reference, refer to
the “PIC24F Family Reference Manual”,
Section 20. “Comparator Module
Voltage Reference Module” (DS39709).
32-to-1 MUX
CVR<3:0>
8R
R
CVREN
CVRSS = 0
AV
DD
VREF+
CVRSS = 1
8R
CVRSS = 0
V
REF-
CVRSS = 1
R
R
R
R
R
R
32 Steps
CVREF
AVSS