PIC18F87J90 Datasheet, PDF (307/450 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt Technology

PIC18F87J90 FAMILY
FIGURE 23-2:
COMPARATOR VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
PIC18F87J90
CVREF
Module
R⁽¹⁾
Voltage RF5
Reference
Output
Impedance
+
–
CVREF Output
Note 1: R is dependent upon the Comparator Voltage Reference bits, CVRCON<5> and CVRCON<3:0>.
TABLE 23-1: 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 CVRR CVRSS CVR3
CVR2
CVR1
CVR0
61
CMCON
C2OUT C1OUT C2INV C1INV
CIS
CM2
CM1
CM0
61
TRISF
TRISF7 TRISF6 TRISF5 TRISF4 TRISF3 TRISF2 TRISF1
—
62
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used with the comparator voltage reference.
 2010 Microchip Technology Inc.
DS39933D-page 307