Microchip Technology MA330012 Fiche De Données
©
2007 Microchip Technology Inc.
Preliminary
DS70165E-page 283
dsPIC33F
REGISTER 22-3:
ADxCON3: ADCx CONTROL REGISTER 3
R/W-0
U-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
ADRC
—
—
SAMC<4:0>
bit 15
bit 8
U-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
—
ADCS<5:0>
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 15
ADRC: ADC Conversion Clock Source bit
1
= ADC internal RC clock
0
= Clock derived from system clock
bit 14-13
Unimplemented: Read as ‘
0
’
bit 12-8
SAMC<4:0>: Auto Sample Time bits
11111
= 31 T
AD
• • •
00001
= 1 T
AD
00000
= 0 T
AD
bit 7-6
Unimplemented: Read as ‘
0
’
bit 5-0
ADCS<5:0>: ADC Conversion Clock Select bits
111111
= T
CY
·
(ADCS<7:0> + 1) = 64
·
T
CY
= T
AD
• • •
000010
= T
CY
·
(ADCS<7:0> + 1) = 3
·
T
CY
= T
AD
000001
= T
CY
·
(ADCS<7:0> + 1) = 2
·
T
CY
= T
AD
000000
= T
CY
·
(ADCS<7:0> + 1) = 1
·
T
CY
= T
AD