Microchip Technology Microstick for the 3V PIC24F K-series DM240013-1 DM240013-1 데이터 시트

 2011 Microchip Technology Inc.

DS31037B-page 171

The comparator voltage reference module is controlled
through the CVRCON register (

). 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 V

SS

, or the external V

REF

+

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.

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 on the
Comparator Voltage Reference, refer to
the  “PIC24F Family Reference Manual”,
Section 20. “Comparator Voltage
Reference Module”

 (DS39709).

32

-t

o-1

 MU

X

CVR<3:0>

8R

R

CVREN

CVRSS = 0

AV

DD

V

REF

+

CVRSS = 1 

8R

CVRSS = 0

V

REF

-

CVRSS = 1 

R

R

R

R

R

R

32 Steps

CV

REF

AV

SS