PIC32MX1XX_12 Datasheet, PDF (206/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

PIC32MX1XX/2XX
REGISTER 21-3: AD1CON3: ADC CONTROL REGISTER 3
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4 27/19/11/3 26/18/10/2 25/17/9/1
31:24
23:16
15:8
7:0
U-0
—
U-0
—
R/W-0
ADRC
R/W-0
U-0
—
U-0
—
U-0
—
R/W-0
U-0
—
U-0
—
U-0
—
R/W-0
U-0
—
U-0
—
R/W-0
U-0
—
U-0
—
R/W-0
R/W-0
R/W-0
ADCS<7:0>⁽²⁾
U-0
—
U-0
—
R/W-0
SAMC<4:0>⁽¹⁾
R/W-0
U-0
—
U-0
—
R/W-0
R/W
Bit
24/16/8/0
U-0
—
U-0
—
R/W-0
R/W-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 31-16 Unimplemented: Read as ‘0’
bit 15 ADRC: ADC Conversion Clock Source bit
1 = Clock derived from FRC
0 = Clock derived from Peripheral Bus Clock (PBCLK)
bit 14-13 Unimplemented: Read as ‘0’
bit 12-8 SAMC<4:0>: Auto-Sample Time bits⁽¹⁾
11111 = 31 TAD
•
•
•
00001 = 1 TAD
00000 = 0 TAD (Not allowed)
bit 7-0 ADCS<7:0>: ADC Conversion Clock Select bits⁽²⁾
11111111 =TPB • 2 • (ADCS<7:0> + 1) = 512 • TPB = TAD
•
•
•
00000001 =TPB • 2 • (ADCS<7:0> + 1) = 4 • TPB = TAD
00000000 =TPB • 2 • (ADCS<7:0> + 1) = 2 • TPB = TAD
Note 1: This bit is only used if the SSRC<2:0> bits (AD1CON1<7:5>) = 111.
2: This bit is not used if the ADRC bit (AD1CON3<15>) = 1.
DS61168E-page 206
Preliminary
 2011-2012 Microchip Technology Inc.