PIC16F1938 Datasheet, PDF (174/452 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

PIC16(L)F1938/9
FIGURE 18-2: COMPARATOR MODULE SIMPLIFIED BLOCK DIAGRAM
CxNCH<1:0>
2
CxON⁽¹⁾
C12IN0-
0
C12IN1-
C12IN2-
1
MUX
2 ⁽²⁾
C12IN3-
CXIN+
DAC
FVR Buffer2
VSS
3
0
MUX
1 (2)
2
3
CxVN _-
CxVP ⁺
Cx⁽³⁾
CxHYS
CxSP
CxON
CXPCH<1:0>
2
CXPOL
Interrupt
det
CxINTP
Interrupt
det
CxINTN
Set CxIF
DQ
Q1 EN
CXOUT
MCXOUT
To Data Bus
To ECCP PWM Logic
CXSYNC
0
DQ
1
(from Timer1)
T1CLK
CXOE
TRIS bit
CXOUT
To Timer1 or SR Latch
SYNCCXOUT
Note 1:
2:
3:
When CxON = 0, the comparator will produce a ‘0’ at the output.
When CxON = 0, all multiplexer inputs are disconnected.
Output of comparator can be frozen during debugging.
DS41574A-page 174
Preliminary
 2011 Microchip Technology Inc.