MA180025 Microchip Technology, MA180025 Datasheet - Page 299

• Manufacturer Part Number: MA180025
• Description: MODULE PLUG-IN PIC18F87J90 PIM
• Manufacturer: Microchip Technology
• Series: PIC®r

Specifications of MA180025

• Accessory Type: Plug-In Module (PIM) - PIC18F87J90
• Product: Microcontroller Modules
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18FxxJxx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PICDEM LCD 2 Demonstration Board (DM163030)
• For Use With: DM163030 - KIT DEV PICDEM LCD2
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

22.0
The
comparators that can be configured in a variety of
ways. The inputs can be selected from the analog
inputs multiplexed with pins, RF1 through RF6, as well
as the on-chip voltage reference (see Section 23.0
“Comparator Voltage Reference Module”). The digi-
tal outputs (normal or inverted) are available at the pin
level and can also be read through the control register.
REGISTER 22-1:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
C2OUT
R-0
analog
COMPARATOR MODULE
C2OUT: Comparator 2 Output bit
When C2INV = 0:
1 = C2 V
0 = C2 V
When C2INV = 1:
1 = C2 V
0 = C2 V
C1OUT: Comparator 1 Output bit
When C1INV = 0:
1 = C1 V
0 = C1 V
When C1INV = 1:
1 = C1 V
0 = C1 V
C2INV: Comparator 2 Output Inversion bit
1 = C2 output inverted
0 = C2 output not inverted
C1INV: Comparator 1 Output Inversion bit
1 = C1 output inverted
0 = C1 output not inverted
CIS: Comparator Input Switch bit
When CM<2:0> = 110:
1 = C1 V
0 = C1 V
CM<2:0>: Comparator Mode bits
Figure 22-1 shows the Comparator modes and the CM<2:0> bit settings.
comparator
C1OUT
C2 V
C2 V
R-0
CMCON: COMPARATOR MODULE CONTROL REGISTER
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
+ > C2 V
+ < C2 V
+ < C2 V
+ > C2 V
+ > C1 V
+ < C1 V
+ < C1 V
+ > C1 V
- connects to RF5/AN10/CV
- connects to RF3/AN8/SEG21/C2INB
- connects to RF6/AN11/SEG24/C1INA
- connects to RF4/AN9/SEG22/C2INA
module
W = Writable bit
‘1’ = Bit is set
C2INV
R/W-0
IN
IN
IN
IN
IN
IN
IN
IN
-
-
-
-
-
-
-
-
contains
C1INV
R/W-0
two
REF
/SEG23/C1INB
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PIC18F87J90 FAMILY
R/W-0
The CMCON register (Register 22-1) selects the
comparator input and output configuration. Block
diagrams of the various comparator configurations are
shown in Figure 22-1.
CIS
R/W-1
CM2
x = Bit is unknown
R/W-1
CM1
DS39933D-page 299
R/W-1
CM0
bit 0