Datasheet

PIC18F87J11 FAMILY
DS39778E-page 324  2007-2012 Microchip Technology Inc.
FIGURE 23-4: COMPARATOR I/O CONFIGURATIONS
Cx
VIN-
V
IN+
Off (Read as ‘0’)
Comparator Off
CON = 0, CREF = x, CCH<1:0> = xx
COE
CxOUT
Pin
Cx
VIN-
V
IN+
COE
Comparator CxINB > CxINA Compare
CON = 1
, CREF = 0, CCH<1:0> = 00
CxINB
CxINA
Cx
VIN-
V
IN+
COE
Comparator CxINC > CxINA Compare
(1)
CON = 1
, CREF = 0, CCH<1:0> = 01
CxINC
CxINA
Cx
VIN-
V
IN+
COE
Comparator CxIND > CxINA Compare
(1,2)
CON = 1
, CREF = 0, CCH<1:0> = 10
CxIND
CxINA
Cx
VIN-
V
IN+
COE
Comparator VIRV > CxINA Compare
CON = 1
, CREF = 0, CCH<1:0> = 11
VIRV
CxINA
Cx
VIN-
V
IN+
COE
Comparator CxINB > CVREF Compare
CON = 1
, CREF = 1, CCH<1:0> = 00
CxINB
CV
REF
Cx
VIN-
V
IN+
COE
Comparator CxINC > CVREF Compare
(1)
CON = 1
, CREF = 1, CCH<1:0> = 01
CxINC
CV
REF
Cx
VIN-
V
IN+
COE
Comparator CxIND > CVREF Compare
(1,2)
CON = 1
, CREF = 1, CCH<1:0> = 10
CxIND
CV
REF
Cx
VIN-
V
IN+
COE
Comparator VIRV > CVREF Compare
CON = 1
, CREF = 1, CCH<1:0> = 11
V
IRV
CV
REF
Legend: V
IRV = Fixed Interval Reference Voltage (1.2V nominal), CVREF = Comparator Voltage Reference module output.
Configurations are available on both Comparators 1 and 2 in all package sizes unless otherwise noted.
Note 1: Configuration is available in 80-pin devices only.
2: Configuration is available in Comparator 2 only (80-pin devices).
CxOUT
Pin
CxOUT
Pin
CxOUT
Pin
CxOUT
Pin
CxOUT
Pin
CxOUT
Pin
CxOUT
Pin
CxOUT
Pin
–
–
–
–
–
–
–
–
–