Microchip Technology ARD00385 Data Sheet
2009-2011 Microchip Technology Inc.
DS39957D-page 399
PIC18F87K90 FAMILY
FIGURE 25-2:
COMPARATOR VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
TABLE 25-1:
REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset
Values on
Page:
CVRCON
CVREN
CVROE
CVRSS
CVR4
CVR3
CVR2
CVR1
CVR0
CM1CON
CON
COE
CPOL
EVPOL1 EVPOL0
CREF
CCH1
CCH0
CM2CON
CON
COE
CPOL
EVPOL1 EVPOL0
CREF
CCH1
CCH0
CM3CON
CON
COE
CPOL
EVPOL1 EVPOL0
CREF
CCH1
CCH0
TRISF
TRISF7
TRISF6
TRISF5
TRISF4
TRISF3
TRISF2
TRISF1
—
Legend:
— = unimplemented, read as ‘0’. Shaded cells are not used with the comparator voltage reference.
CV
REF
Output
+
–
–
CV
REF
Module
Voltage
Reference
Output
Impedance
R
(1)
RF5
PIC18F87K90
Note
1:
R is dependent upon the Voltage Reference Configuration bits, CVRCON<3:0> and CVRCON<5>.