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PIC16F946-E/MLQTP Datasheet(PDF) 121 Page - Microchip Technology

Part # PIC16F946-E/MLQTP
Description  28/40/44/64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PDF  330 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F946-E/MLQTP Datasheet(HTML) 121 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS41250F-page 119
PIC16F913/914/916/917/946
FIGURE 8-8:
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
TABLE 8-2:
SUMMARY OF REGISTERS ASSOCIATED WITH THE COMPARATOR AND VOLTAGE
REFERENCE MODULES
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
Resets
ANSEL
ANS7
ANS6
ANS5
ANS4
ANS3
ANS2
ANS1
ANS0
1111 1111
1111 1111
CMCON0
C2OUT
C1OUT
C2INV
C1INV
CIS
CM2
CM1
CM0
0000 0000
0000 0000
CMCON1
—
—
—
—
—
—
T1GSS
C2SYNC
---- --10
---- --10
INTCON
GIE
PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF
0000 000x
0000 000x
PIE2
OSFIE
C2IE
C1IE
LCDIE
—
LVDIE
—
CCP2IE
0000 -0-0
0000 -0-0
PIR2
OSFIF
C2IF
C1IF
LCDIF
—
LVDIF
—
CCP2IF
0000 -0-0
0000 -0-0
PORTA
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
xxxx xxxx
uuuu uuuu
TRISA
TRISA7
TRISA6
TRISA5 TRISA4 TRISA3 TRISA2 TRISA1
TRISA0
1111 1111
1111 1111
VRCON
VREN
—VRR
—
VR3
VR2
VR1
VR0
0-0- 0000
0000 0000
Legend:
x
= unknown, u = unchanged, - = unimplemented, read as ‘0’. Shaded cells are not used for comparator.
VRR
8R
VR<3:0>(1)
16-1 Analog
8R
RR
RR
CVREF to
16 Stages
Comparator
Input
VREN
VDD
MUX
VR<3:0> = 0000
VREN
VRR
0
1
2
14
15
Note 1: Care should be taken to ensure VREF remains
within the comparator common mode input range.
See Section 19.0 “Electrical Specifications”
for more detail.



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