Datasheet

 2010-2013 Microchip Technology Inc. DS39881E-page 195
PIC24FJ64GA004 FAMILY
REGISTER 21-1: AD1CON1: A/D CONTROL REGISTER 1
R/W-0 U-0 R/C-0 U-0 U-0 U-0 R/W-0 R/W-0
ADON
(1)
—ADSIDL— — —FORM1FORM0
bit 15 bit 8
R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0, HSC R/W-0, HSC
SSRC2 SSRC1 SSRC0
— — ASAM SAMP DONE
bit 7 bit 0
Legend: C = Clearable bit HSC = Hardware Settable/Clearable bit
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 ADON: A/D Operating Mode bit
(1)
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 12-10 Unimplemented: Read as ‘0’
bit 9-8 FORM<1:0>: Data Output Format bits
11 = Signed fractional (sddd dddd dd00 0000)
10 = Fractional (dddd dddd dd00 0000)
01 = Signed integer (ssss sssd dddd dddd)
00 = Integer (0000 00dd dddd dddd)
bit 7-5 SSRC<2:0>: Conversion Trigger Source Select bits
111 = Internal counter ends sampling and starts conversion (auto-convert)
110 = Reserved
10x = Reserved
011 = Reserved
010 = Timer3 compare ends sampling and starts conversion
001 = Active transition on INT0 pin ends sampling and starts conversion
000 = Clearing the SAMP bit ends sampling and starts conversion
bit 4-3 Unimplemented: Read as ‘0’
bit 2 ASAM: A/D Sample Auto-Start bit
1 = Sampling begins immediately after last conversion completes; SAMP bit is auto-set
0 = Sampling begins when SAMP bit is set
bit 1 SAMP: A/D Sample Enable bit
1 = A/D Sample-and-Hold (S/H) amplifier is sampling input
0 = A/D Sample-and-Hold amplifier is holding
bit 0 DONE: A/D Conversion Status bit
1 = A/D conversion is done
0 = A/D conversion is NOT done
Note 1: The ADC1BUFn registers do not retain their values when ADON is cleared. Read out any conversion
values from the buffer before disabling the module.