PIC18F6X2X Datasheet, PDF (239/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

PIC18F6X2X/8X2X
REGISTER 20-3:
ADCON2 REGISTER
R/W-0
U-0
R/W-0
ADFM
—
ACQT2
bit 7
R/W-0
ACQT1
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
000 = 0 TAD⁽¹⁾
001 = 2 TAD
010 = 4 TAD
011 = 6 TAD
100 = 8 TAD
101 = 12 TAD
110 = 16 TAD
111 = 20 TAD
ADCS2:ADCS0: A/D Conversion Clock Select bits
000 = FOSC/2
001 = FOSC/8
010 = FOSC/32
011 = FRC (clock derived from A/D RC oscillator)⁽¹⁾
100 = FOSC/4
101 = FOSC/16
110 = FOSC/64
111 = FRC (clock derived from A/D RC oscillator)⁽¹⁾
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
 2003 Microchip Technology Inc.
Advance Information
DS39612A-page 237