PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 248
PIC18F2331
Manufacturer Part Number
PIC18F2331
Description
28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F2331.pdf
(396 pages)
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PIC18F2331/2431/4331/4431
REGISTER 20-3:
DS39616B-page 246
bit 7
bit 6-3
bit 2-0
ADFM: A/D Result Format Select bit
1 = Right justified
0 = Left justified
ACQT<3:0>: A/D Acquisition Time Select bits
0000 = No Delay(1) (Conversion starts immediately when GO/DONE is set)
0001 = 2 T
0010 = 4 T
0011 = 6 T
0100 = 8 T
0101 = 10 T
0110 = 12 T
0111 = 16 T
1000 = 20 T
1001 = 24 T
1010 = 28 T
1011 = 32 T
1100 = 36 T
1101 = 40 T
1110 = 48 T
1111 = 64 T
ADCS<2:0>: A/D Conversion Clock Select bits
000 =
001 =
010 =
011 =
100 =
101 =
110 =
111 =
bit 7
Legend:
R = Readable bit
-n = Value at Reset
ADCON2 – A/D CONTROL REGISTER 2
R/W-0
ADFM
Note 1: If the A/D clock source is selected as RC, a time of T
2: Due to an increased frequency of the internal A/D RC oscillator, F
3: In sequential mode T
F
F
F
F
F
F
F
F
OSC
OSC
OSC
RC
OSC
OSC
OSC
RC
conversion starts.
frequencies compatible with previous A/D modules.
AD
AD
AD
AD
/4
AD
AD
AD
AD
AD
AD
AD
AD
AD
AD
AD
(Internal A/D RC Oscillator)
ACQT3
/2
/8
/32
/4
/16
/64
R/W-0
(2)
ACQT2
R/W-0
Preliminary
W = Writable bit
‘1’ = bit is set
ACQ
should be 12 T
ACQT1
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = bit is cleared
ACQT0
AD
R/W-0
or greater.
ADCS2
R/W-0
2003 Microchip Technology Inc.
CY
is added before sampling/
x = bit is unknown
ADCS1
R/W-0
RC
/4 provides clock
ADCS0
R/W-0
bit 0
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