© 2008 Microchip Technology Inc. DS80352B-page 5
PIC18F1230/1330
FIGURE 17-1: COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
16-to-1 MUX
CVR3:CVR0
8R
R
CVREN
CVRSS = 0
AV
DD
VREF+
CVRSS = 1
8R
CVRSS = x
AV
SS
R
R
R
R
R
R
16 Steps
CVRR
CVREF
CVREN = 0
CVREN = 1
