Datasheet

PIC16F87XA
DS39582C-page 142  2001-2013 Microchip Technology Inc.
FIGURE 13-1: COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
TABLE 13-1: REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
CVRR
8R
CVR3
CVR0
16:1 Analog MUX
8R
R
R
R
R
CVREN
CV
REF
16 Stages
Input to
Comparator
CVROE
RA2/AN2/VREF-/CVREF
VDD
CVR2
CVR1
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on
POR
Value on
all other
Resets
9Dh CVRCON CVREN CVROE CVRR — CVR3 CVR2 CVR1 CVR0 000- 0000 000- 0000
9Ch CMCON C2OUT C1OUT C2INV C1INV CIS CM2 CM1 CM0 0000 0111 0000 0111
Legend: x = unknown, u = unchanged, - = unimplemented, read as ‘0’.
Shaded cells are not used with the comparator voltage reference.