PIC24FJ128GB MICROCHIP [Microchip Technology], PIC24FJ128GB Datasheet - Page 261

• Manufacturer Part Number: PIC24FJ128GB
• Description: 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)
• Manufacturer: MICROCHIP [Microchip Technology]

22.0
The triple comparator module provides three dual input
comparators. The inputs to the comparator can be con-
figured to use any one of four external analog inputs as
well, as a voltage reference input from either the
internal band gap reference divided by two (V
the comparator voltage reference generator.
FIGURE 22-1:
© 2008 Microchip Technology Inc.
Note:
CCH1:CCH0
CREF
C
C
C
V
C
CV
BG
X
X
X
X
INB
INC
IND
INA
REF
TRIPLE COMPARATOR
MODULE
/2
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
associated “PIC24F Family Reference
Manual” chapter.
TRIPLE COMPARATOR MODULE BLOCK DIAGRAM
Select
Logic
Input
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
-
+
-
+
-
+
C1
C2
C3
BG
PIC24FJ256GB110 FAMILY
/2) or
Preliminary
EVPOL1:EVPOL0
EVPOL1:EVPOL0
CPOL
EVPOL1:EVPOL0
CPOL
CPOL
The comparator outputs may be directly connected to
the CxOUT pins. When the respective COE equals ‘1’,
the I/O pad logic makes the unsynchronized output of
the comparator available on the pin.
A simplified block diagram of the module in shown in
Figure 22-1. Diagrams of the possible individual
comparator configurations are shown in Figure 22-2.
Each comparator has its own control register,
CMxCON (Register 22-1), for enabling and configuring
its operation. The output and event status of all three
comparators is provided in the CMSTAT register
(Register 22-2).
Trigger/Interrupt
Trigger/Interrupt
Trigger/Interrupt
Logic
Logic
Logic
COE
COE
COE
CEVT
CEVT
COUT
COUT
CEVT
COUT
DS39897B-page 259
C1OUT
C2OUT
C3OUT
Pin
Pin
Pin