PIC18F87J10 Datasheet, PDF (251/394 Pages) Microchip Technology – 64/80-Pin High-Performance, 1-Mbit Flash Microcontrollers with nanoWatt Technology

PIC18F87J10 FAMILY
REGISTER 20-3:
ADCON2: A/D CONTROL REGISTER 2
R/W-0
U-0
R/W-0 R/W-0
ADFM
—
ACQT2 ACQT1
bit 7
R/W-0
ACQT0
R/W-0
ADCS2
R/W-0
ADCS1
R/W-0
ADCS0
bit 0
bit 7
bit 6
bit 5-3
bit 2-0
ADFM: A/D Result Format Select bit
1 = Right justified
0 = Left justified
Unimplemented: Read as ‘0’
ACQT2:ACQT0: A/D Acquisition Time Select bits
111 = 20 TAD
110 = 16 TAD
101 = 12 TAD
100 = 8 TAD
011 = 6 TAD
010 = 4 TAD
001 = 2 TAD
000 = 0 TAD⁽¹⁾
ADCS2:ADCS0: A/D Conversion Clock Select bits
111 = FRC (clock derived from A/D RC oscillator)⁽¹⁾
110 = FOSC/64
101 = FOSC/16
100 = FOSC/4
011 = FRC (clock derived from A/D RC oscillator)⁽¹⁾
010 = FOSC/32
001 = FOSC/8
000 = FOSC/2
Note 1: If the A/D FRC clock source is selected, a delay of one TCY (instruction cycle) is
added before the A/D clock starts. This allows the SLEEP instruction to be executed
before starting a conversion.
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
’1’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
 2005 Microchip Technology Inc.
Advance Information
DS39663A-page 249