PIC32MX440F256H-80I Datasheet, PDF (626/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
FIGURE 30-18:
A/D CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)
AD50
ADCLK
Instruction
Execution Set SAMP
SAMP
ch0_dischrg
ch0_samp
ch1_dischrg
ch1_samp
eoc
AD61
CONV
ADxIF
Buffer(0)
Buffer(1)
Clear SAMP
AD60
TSAMP
AD55
AD55
12
34 5 6
78
56
78
1 – Software sets ADxCON. SAMP to start sampling.
2 – Sampling starts after discharge period. TSAMP is described in the “PIC32MX Family Reference Manual” (DS61132).
3 – Software clears ADxCON. SAMP to start conversion.
4 – Sampling ends, conversion sequence starts.
5 ^{– Convert bit 9.}
6 ^{– Convert bit 8.}
7 ^{– Convert bit 0.}
8 – One TAD for end of conversion.
DS61143E-page 624
Preliminary
© 2008 Microchip Technology Inc.