PIC24FJ64GA306-I/MR Microchip Technology, PIC24FJ64GA306-I/MR Datasheet - Page 321

• Manufacturer Part Number: PIC24FJ64GA306-I/MR
• Description: 16-bit, 16 MIPS, 64 KB Flash, 8 KB RAM, 53 I/O, LCD, XLP W/Vbat 64 QFN 9x9x0.9mm
• Manufacturer: Microchip Technology

26.0
FIGURE 26-1:
 2010-2011 Microchip Technology Inc.
Note:
COMPARATOR VOLTAGE
REFERENCE
Section 19. “Dual Comparator Module”
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
(DS39710). The information in this data
sheet supersedes the information in the
FRM.
CVREN
V
CVRR
V
AV
REF
REF
DD
+
-
Family
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
CVRSS = 1
CVRSS = 0
Reference
16 Steps
CVRSS = 1
CVRSS = 0
AV
SS
Manual”,
PIC24FJ128GA310 FAMILY
8R
R
R
R
R
R
R
R
8R
26.1
The voltage reference module is controlled through the
CVRCON register
voltage reference provides two ranges of output
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.
REF
-. The voltage source is selected by the CVRSS
selected
CVR<3:0>
Configuring the Comparator
Voltage Reference
DD
and V
by
(Register
SS
the
, or the external V
CV
REF
CVROE
CV
26-1). The comparator
REF
DS39996F-page 321
C
Pin
VREF
Selection
REF
+ and
REF
bits