PIC24EP256GU810-I Datasheet, PDF (417/622 Pages) Electronic Film Capacitors, Inc. – 16-Bit Microcontrollers and Digital Signal Controllers with High-Speed PWM, USB and Advanced Analog

dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
23.4 ADC Control Registers
REGISTER 23-1: ADxCON1: ADCx CONTROL REGISTER 1
R/W-0
ADON
bit 15
U-0
R/W-0
R/W-0
U-0
—
ADSIDL ADDMABM
—
R/W-0
AD12B⁽¹⁾
R/W-0
R/W-0
FORM<1:0>
bit 8
R/W-0
bit 7
R/W-0
SSRC<2:0>
R/W-0
R/W-0
SSRCG
R/W-0
SIMSAM
R/W-0
ASAM⁽³⁾
R/W-0, HSC
SAMP
R/C-0, HSC
DONE⁽³⁾
bit 0
Legend:
R = Readable bit
-n = Value at POR
C = Clearable bit
W = Writable bit
‘1’ = Bit is set
HSC = Hardware Settable/Clearable bit
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9-8
ADON: ADC Operating Mode bit
1 = ADC module is operating
0 = ADC is off
Unimplemented: Read as ‘0’
ADSIDL: ADC Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
ADDMABM: DMA Buffer Build Mode bit
1 = DMA buffers are written in the order of conversion; the module provides an address to the DMA
channel that is the same as the address used for the non-DMA stand-alone buffer
0 = DMA buffers are written in Scatter/Gather mode; the module provides a Scatter/Gather address
to the DMA channel, based on the index of the analog input and the size of the DMA buffer
Unimplemented: Read as ‘0’
AD12B: ADC 10-Bit or 12-Bit Operation Mode bit⁽¹⁾
1 = 12-bit, 1-channel ADC operation
0 = 10-bit, 4-channel ADC operation
FORM<1:0>: Data Output Format bits
For 10-Bit Operation:
11 = Signed fractional (DOUT = sddd dddd dd00 0000, where s = .NOT.d<9>)
10 = Fractional (DOUT = dddd dddd dd00 0000)
01 = Signed integer (DOUT = ssss sssd dddd dddd, where s = .NOT.d<9>)
00 = Integer (DOUT = 0000 00dd dddd dddd)
For 12-Bit Operation:
11 = Signed fractional (DOUT = sddd dddd dddd 0000, where s = .NOT.d<11>)
10 = Fractional (DOUT = dddd dddd dddd 0000)
01 = Signed Integer (DOUT = ssss sddd dddd dddd, where s = .NOT.d<11>)
00 = Integer (DOUT = 0000 dddd dddd dddd)
Note 1:
2:
3:
This bit is only available in the ADC1 module. In the ADC2 module, this bit is unimplemented and is read
as ‘0’.
This setting is available in dsPIC33EPXXX(MC/MU)806/810/814 devices only.
Do not clear the DONE bit in software if ADC Sample Auto-Start is enabled (ASAM = 1).
 2009-2012 Microchip Technology Inc.
DS70616G-page 417