PIC16F737-I Datasheet, PDF (170/276 Pages) Microchip Technology – 28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC16F7X7
FIGURE 14-1:
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
VDD
CVREN
16 Stages
8R
R
R
R
R
8R
CVRR
RA2/AN2/VREF-/CVREF
CVREF
Input to
Comparator
CVROE
16:1 Analog MUX
CVR3
CVR2
CVR1
CVR0
TABLE 14-1: REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
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
9Ch
CMCON C2OUT C1OUT C2INV C1INV CIS
CM2
Legend: x = unknown, u = unchanged, — = unimplemented, read as ‘0’.
Shaded cells are not used with the comparator voltage reference.
CVR1
CM1
CVR0 000- 0000 000- 0000
CM0 0000 0111 0000 0111
DS30498C-page 168
 2004 Microchip Technology Inc.