DV164136 Microchip Technology, DV164136 Datasheet - Page 284

• Manufacturer Part Number: DV164136
• Description: DEVELOPMENT KIT FOR PIC18
• Manufacturer: Microchip Technology
• Series: PIC®r
• Type: MCUr

Specifications of DV164136

• Contents: Board, Cables, CDs, PICkit™ 3 Programmer, Power Supply
• Processor To Be Evaluated: PIC18F8722, PIC18F87J11
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3.3 V, 5 V
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18F8xxx
• Kit Contents: PIC18 Exp Brd PICkit 3 Cable CD PSU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC18F8722, PIC18F87J11
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F8722 FAMILY
22.1
There are eight modes of operation for the compara-
tors, shown in Figure 22-1. Bits CM<2:0> of the
CMCON register are used to select these modes. The
TRISF register controls the data direction of the
comparator pins for each mode. If the Comparator
FIGURE 22-1:
DS39646C-page 282
Comparators Reset
CM<2:0> = 000
Two Independent Comparators
CM<2:0> = 010
Two Common Reference Comparators
CM<2:0> = 100
One Independent Comparator with Output
CM<2:0> = 001
RF5/AN10/
CV
RF6/AN11
RF5/AN10/
CV
RF5/AN10/
CV
RF4/AN9
RF3/AN8
RF6/AN11
RF2/AN7/
C1OUT*
RF6/AN11
RF4/AN9
RF3/AN8
RF5/AN10/
CV
RF4/AN9
RF3/AN8
RF6/AN11
RF4/AN9
RF3/AN8
A = Analog Input, port reads zeros always
* Setting the TRISF<2:1> bits will disable the comparator outputs by configuring the pins as inputs.
REF
REF
REF
REF
Comparator Configuration
A
A
A
A
A
A
A
A
A
A
A
D
A
A
D
D
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
COMPARATOR I/O OPERATING MODES
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
C1
C2
C1
C2
C1
C2
C1
C2
Off (Read as ‘
Off (Read as ‘
C1OUT
C2OUT
C1OUT
C2OUT
C1OUT
Off (Read as ‘
D = Digital Input
0
0
0
’)
’)
’)
Two Common Reference Comparators with Outputs
CM<2:0> = 101
Two Independent Comparators with Outputs
CM<2:0> = 011
Comparators Off (POR Default Value)
CM<2:0> = 111
Four Inputs Multiplexed to Two Comparators
CM<2:0> = 110
RF5/AN10/
CV
RF6/AN11
RF6/AN11
RF5/AN10
RF2/AN7/C1OUT*
RF4/AN9
RF3/AN8
RF1/AN6/C2OUT*
RF5/AN10/
CV
RF2/AN7/
C1OUT*
RF1/AN6/C2OUT*
RF4/AN9
RF3/AN8
RF6/AN11
RF4/AN9
RF3/AN8
RF5/AN10/
CV
RF6/AN11
RF4/AN9
RF3/AN8
mode is changed, the comparator output level may not
be valid for the specified mode change delay shown in
Section 28.0 “Electrical Characteristics”.
REF
REF
REF
Note:
CIS (CMCON<3>) is the Comparator Input Switch
A
A
A
A
D
D
D
D
A
A
A
A
A
A
A
D
Comparator interrupts should be disabled
during a Comparator mode change;
otherwise, a false interrupt may occur.
V
V
V
V
V
V
V
V
CIS =
CIS =
CIS =
CIS =
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
-
+
-
+
-
+
-
+
-
+
-
+
0
1
0
1
© 2008 Microchip Technology Inc.
C1
C2
C1
C2
C1
C2
V
V
V
V
IN
IN
IN
IN
CV
-
+
-
+
REF
C1OUT
C2OUT
Off (Read as ‘
Off (Read as ‘
C1
C2
C1OUT
C2OUT
From V
REF
C1OUT
C2OUT
Module
0
0
’)
’)