Datasheet

PIC32MX3XX/4XX
DS61143H-page 184 © 2011 Microchip Technology Inc.
FIGURE 29-19: ANALOG-TO-DIGITAL CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)
AD55
TSAMP
Set ADON
ADCLK
Instruction
SAMP
ch0_dischrg
ch1_samp
CONV
ADxIF
Buffer(0)
Buffer(1)
1 2 3 4 5 6 4 5 6 8
1
– Software sets ADxCON. ADON to start AD operation.
2
– Sampling starts after discharge period.
3
– Convert bit 9.
4
– Convert bit 8.
5
– Convert bit 0.
AD50
ch0_samp
ch1_dischrg
eoc
7 3
AD55
6
– One T
AD for end of conversion.
7
– Begin conversion of next channel.
8
– Sample for time specified by SAMC<4:0>.
TSAMP
TCONV
3 4
Execution
TSAMP is described in Section 17. “10-bit Analog-to-Digital Converter (ADC)”
(DS61104) of the “PIC32 Family Reference Manual”.