PIC24FJ32GB002-E/ML MICROCHIP [Microchip Technology], PIC24FJ32GB002-E/ML Datasheet - Page 273

• Manufacturer Part Number: PIC24FJ32GB002-E/ML
• Description: 28/44-Pin, 16-Bit, Flash Microcontrollers with USB On-The-Go (OTG) and nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

24.0
24.1
The voltage reference module is controlled through the
CVRCON register (Register 24-1). The comparator
voltage reference provides two ranges of output
FIGURE 24-1:
 2010 Microchip Technology Inc.
Note:
CVRR
V
AV
CVREN
V
COMPARATOR VOLTAGE
REFERENCE
Configuring the Comparator
Voltage Reference
REF
REF
DD
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
“PIC24F
Section 20. “Comparator Voltage
Reference Module” (DS39709).
+
-
CVRSS = 0
CVRSS = 1
Family
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
CVRSS = 1
CVRSS = 0
16 Steps
AV
Reference
SS
8R
R
R
R
R
R
R
R
Manual”,
PIC24FJ64GB004 FAMILY
8R
voltage, each with 16 distinct levels. The range to be
used is selected by the CVRR bit (CVRCON<5>). The
primary difference between the ranges is the size of the
steps
(CVR<3:0>), with one range offering finer resolution.
The comparator reference supply voltage can come
from either V
V
bit (CVRCON<4>).
The settling time of the comparator voltage reference
must be considered when changing the CV
output.
CVR<3:0>
REF
-. The voltage source is selected by the CVRSS
selected
V
REF
DD
+
V
V
and V
BG
BG
V
V
by
BG
CVROE
CVREFM<1:0>
/6
/2
REF
SS
+
the
10
01
11
00
, or the external V
CVREFP
CV
1
0
REF
CV
CV
DS39940D-page 273
REF
REF
CV
Selection
-
REF
REF
+
+ and
REF
bits