70592C Datasheet, PDF (215/314 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers

PIC24HJXXXGPX06A/X08A/X10A
REGISTER 20-3: ADxCON3: ADCx CONTROL REGISTER 3
R/W-0
U-0
ADRC
—
bit 15
U-0
R/W-0
R/W-0
R/W-0
—
SAMC<4:0>⁽¹⁾
R/W-0
R/W-0
bit 8
R/W-0
bit 7
R/W-0
R/W-0
R/W-0
R/W-0
ADCS<7:0>⁽²⁾
R/W-0
R/W-0
R/W-0
bit 0
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
bit 15
bit 14-13
bit 12-8
bit 7-0
ADRC: ADC Conversion Clock Source bit
1 = ADC internal RC clock
0 = Clock derived from system clock
Unimplemented: Read as ‘0’
SAMC<4:0>: Auto Sample Time bits⁽¹⁾
11111 = 31 TAD
•
•
•
00001 = 1 TAD
00000 = 0 TAD
ADCS<7:0>: Analog-to-Digital Conversion Clock Select bits⁽²⁾
11111111 = Reserved
•
•
•
01000000 = Reserved
00111111 = TCY · (ADCS<7:0> + 1) = 64 · TCY = TAD
•
•
•
00000010 = TCY · (ADCS<7:0> + 1) = 3 · TCY = TAD
00000001 = TCY · (ADCS<7:0> + 1) = 2 · TCY = TAD
00000000 = TCY · (ADCS<7:0> + 1) = 1 · TCY = TAD
Note 1: This bit only used if ADxCON1<7:5> (SSRC<2:0>) = 111.
2: This bit is not used if ADxCON3<15> (ADRC) = 1.
© 2011 Microchip Technology Inc.
DS70592C-page 215