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PIC16F872/SP Datasheet(PDF) 86 Page - Microchip Technology

Part # PIC16F872/SP
Description  28-Pin, 8-Bit CMOS FLASH Microcontroller
PDF  160 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F872/SP Datasheet(HTML) 86 Page - Microchip Technology

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PIC16F872
DS30221A-page 86
Preliminary
© 1999 Microchip Technology Inc.
REGISTER 10-2: ADCON1 REGISTER (ADDRESS 9Fh)
U-0
U-0
R/W-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
ADFM
—
—
—
PCFG3
PCFG2
PCFG1
PCFG0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit7
bit0
bit 7:
ADFM: A/D Result format select
1
= Right Justified. 6 most significant bits of ADRESH are read as ‘0’.
0
= Left Justified. 6 least significant bits of ADRESL are read as ‘0’.
bit 6-4:
Unimplemented: Read as '0'
bit 3-0:
PCFG<3:0>: A/D Port Configuration Control bits
A = Analog input
D = Digital I/O
Note 1:
This column indicates the number of analog channels available as A/D inputs and the number of analog channels
used as voltage reference inputs.
PCFG<3:0>
AN4
RA5
AN3
RA3
AN2
RA2
AN1
RA1
AN0
RA0
VREF+VREF-
CHAN /
Refs(1)
0000
A
A
AAA
VDD
VSS
5/0
0001
AVREF+
AAA
RA3
VSS
4/1
0010
A
A
AAA
VDD
VSS
5/0
0011
AVREF+
AAA
RA3
VSS
4/1
0100
DA
D
A
A
VDD
VSS
3/0
0101
DVREF+D
A
A
RA3
VSS
2/1
011x
D
D
DDD
VDD
VSS
0/0
1000
AVREF+VREF-A
A
RA3
RA2
3/2
1001
A
A
AAA
VDD
VSS
5/0
1010
AVREF+
AAA
RA3
VSS
4/1
1011
AVREF+VREF-A
A
RA3
RA2
3/2
1100
AVREF+VREF-A
A
RA3
RA2
3/2
1101
DVREF+VREF-A
A
RA3
RA2
2/2
1110
DD
D
D
A
VDD
VSS
1/0
1111
DVREF+VREF-D
A
RA3
RA2
1/2



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