Microchip Technology AC244049 Scheda Tecnica
© 2009 Microchip Technology Inc.
DS41341E-page 105
PIC16F72X/PIC16LF72X
REGISTER 9-2:
ADCON1: A/D CONTROL REGISTER 1
REGISTER 9-3:
ADRES: ADC RESULT REGISTER
U-0
R/W-0
R/W-0
R/W-0
U-0
U-0
R/W-0
R/W-0
—
ADCS2
ADCS1
ADCS0
—
—
ADREF1
ADREF0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
Unimplemented: Read as ‘0’
bit 6-4
ADCS<2:0>: A/D Conversion Clock Select bits
000
= F
OSC
/2
001
= F
OSC
/8
010
= F
OSC
/32
011
= F
RC
(clock supplied from a dedicated RC oscillator)
100
= F
OSC
/4
101
= F
OSC
/16
110
= F
OSC
/64
111
= F
RC
(clock supplied from a dedicated RC oscillator)
bit 3-2
Unimplemented: Read as ‘0’
bit 1-0
ADREF<1:0>: Voltage Reference Configuration bits
0x
= V
REF
is connected to V
DD
10
= V
REF
is connected to external V
REF
(RA3/AN3)
11
= V
REF
is connected to internal Fixed Voltage Reference
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
ADRES7
ADRES6
ADRES5
ADRES4
ADRES3
ADRES2
ADRES1
ADRES0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
ADRES<7:0>: ADC Result Register bits
8-bit conversion result.