DV164136 Microchip Technology, DV164136 Datasheet - Page 303

• 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

22.0
The analog comparator module contains two compara-
tors that can be independently configured in a variety of
ways. The inputs can be selected from the analog
inputs and two internal voltage references. The digital
outputs are available at the pin level and can also be
read through the control register. Multiple output and
interrupt event generation are also available. A generic
single comparator from the module is shown in
Figure 22-1.
Key features of the module includes:
• Independent comparator control
• Programmable input configuration
• Output to both pin and register levels
• Programmable output polarity
• Independent interrupt generation for each
FIGURE 22-1:
© 2009 Microchip Technology Inc.
comparator with configurable interrupt-on-change
Note 1: Available in 80-pin devices only.
CCH1:CCH0
CxINC
CxIND
CV
CxINB
CxINA
CREF
2: Implemented in Comparator 2 only.
COMPARATOR MODULE
V
REF
IRV
0
1
2
3
0
1
(1)
(1,2)
COMPARATOR SIMPLIFIED BLOCK DIAGRAM
V
V
IN
IN
-
+
-
CON
Cx
PIC18F87J11 FAMILY
22.1
The CMxCON registers (Register 22-1) select the input
and output configuration for each comparator, as well
as the settings for interrupt generation.
The CMSTAT register (Register 22-2) provides the out-
put results of the comparators. The bits in this register
are read-only.
EVPOL<4:3>
Interrupt
Polarity
CPOL
Logic
Logic
Registers
COE
DS39778D-page 303
COUTx
(CMSTAT<1:0>)
CMxIF
CxOUT