PIC24FJ128GA310-I Datasheet, PDF (303/406 Pages) Microchip Technology – 64/80/100-Pin, General Purpose, 16-Bit Flash Microcontrollers with LCD Controller and nanoWatt XLP Technology

PIC24FJ128GA310 FAMILY
REGISTER 24-2: AD1CON2: A/D CONTROL REGISTER 2 (CONTINUED)
bit 1
BUFM: Buffer Fill Mode Select bit⁽¹⁾
1 = A/D buffer is two, 13-word buffers, starting at ADC1BUF0 and ADC1BUF12, and sequential
conversions fill the buffers alternately (Split mode)
0 = A/D buffer is a single, 26-word buffer and fills sequentially from ADC1BUF0 (FIFO mode)
bit 0
ALTS: Alternate Input Sample Mode Select bit
1 = Uses channel input selects for Sample A on first sample and Sample B on next sample
0 = Always uses channel input selects for Sample A
Note 1: These bits are only applicable when the buffer is used in FIFO mode (BUFREGEN = 0). In addition, BUFS
is only used when BUFM = 1.
REGISTER 24-3: AD1CON3: A/D CONTROL REGISTER 3
R/W-0
ADRC
bit 15
R-0
EXTSAM
R/W-0
PUMPEN
R/W-0
SAMC4
R/W-0
SAMC3
R/W-0
SAMC2
R/W-0
SAMC1
R/W-0
SAMC0
bit 8
R/W-0
ADCS7
bit 7
R/W-0
ADCS6
R/W-0
ADCS5
R/W-0
ADCS4
R/W-0
ADCS3
R/W-0
ADCS2
R/W-0
ADCS1
R/W-0
ADCS0
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
bit 13
bit 12-8
bit 7-0
ADRC: A/D Conversion Clock Source bit
1 = RC Clock
0 = Clock derived from system clock
EXTSAM: Extended Sampling Time bit
1 = A/D is still sampling after SAMP = 0
0 = A/D is finished sampling
PUMPEN: Charge Pump Enable bit
1 = Charge pump for switches is enabled
0 = Charge pump for switches is disabled
SAMC<4:0>: Auto-Sample Time Select bits
11111
= 31 TAD

00001
00000
= 1 TAD
= 0 TAD
ADCS<7:0>: A/D Conversion Clock Select bits
11111111

= Reserved
01000000
00111111 = 64·TCY = TAD

00000001 = 2·TCY = TAD
00000000 = TCY = TAD
 2010-2011 Microchip Technology Inc.
DS39996F-page 303