Datasheet

 2011-2013 Microchip Technology Inc. DS39995D-page 211
PIC24FV32KA304 FAMILY
REGISTER 22-1: AD1CON1: A/D CONTROL REGISTER 1
R/W-0 U-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0
ADON —ADSIDL— —MODE12FORM1FORM0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0, HSC R/C-0, HSC
SSRC3 SSRC2 SSRC1 SSRC0
— ASAM SAMP DONE
bit 7 bit 0
Legend: C = Clearable bit U = Unimplemented bit, read as ‘0’
R = Readable bit W = Writable bit HSC = Hardware Settable/Clearable bit
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 ADON: A/D Operating Mode bit
1 = A/D Converter module is operating
0 = A/D Converter is off
bit 14 Unimplemented: Read as ‘0’
bit 13 ADSIDL: A/D Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12-11 Unimplemented: Read as ‘0’
bit 10 MODE12: 12-Bit Operation Mode bit
1 = 12-bit A/D operation
0 = 10-bit A/D operation
bit 9-8 FORM<1:0>: Data Output Format bits (see the following formats)
11 = Fractional result, signed, left-justified
10 = Absolute fractional result, unsigned, left-justified
01 = Decimal result, signed, right-justified
00 = Absolute decimal result, unsigned, right-justified
bit 7-4 SSRC<3:0>: Sample Clock Source Select bits
1111 = Not available; do not use



1000 = Not available; do not use
0111 = Internal counter ends sampling and starts conversion (auto-convert)
0110 = Not available; do not use
0101 = Timer1 event ends sampling and starts conversion
0100 = CTMU event ends sampling and starts conversion
0011 = Timer5 event ends sampling and starts conversion
0010 = Timer3 event ends sampling and starts conversion
0001 = INT0 event ends sampling and starts conversion
0000 = Clearing the SAMP bit in software ends sampling and begins conversion
bit 3 Unimplemented: Read as ‘0’
bit 2 ASAM: A/D Sample Auto-Start bit
1 = Sampling begins immediately after the last conversion; SAMP bit is auto-set
0 = Sampling begins when the SAMP bit is manually set
bit 1 SAMP: A/D Sample Enable bit
1 = A/D Sample-and-Hold amplifiers are sampling
0 = A/D Sample-and-Hold amplifiers are holding
bit 0 DONE: A/D Conversion Status bit
1 = A/D conversion cycle has completed
0 = A/D conversion cycle has not started or is in progress