Datasheet

dsPIC33FJ16(GP/MC)101/102 AND dsPIC33FJ32(GP/MC)101/102/104
DS70652E-page 332  2011-2012 Microchip Technology Inc.
FIGURE 26-31: ADC CONVERSION TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)
FIGURE 26-32: ADC CONVERSION TIMING CHARACTERISTICS (CHPS<1:0> = 01, SIMSAM = 0,
ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)
TSAMP
Set SAMP
AD61
ADCLK
Instruction
SAMP
AD60
DONE
ADxIF
1 2 3 4 5 6 8 5 6 7
1
– Software sets ADxCON. SAMP to start sampling.
2
– Sampling starts after discharge period. TSAMP is described in Section 16. “Analog-to-Digital Converter (ADC)”
3
– Software clears ADxCON. SAMP to start conversion.
4
– Sampling ends, conversion sequence starts.
5
– Convert bit 9.
8
– One T
AD for end of conversion.
AD50
7 8
6
– Convert bit 8.
7
– Convert bit 0.
Execution
(DS70183) in the “dsPIC33F/PIC24H Family Reference Manual”.
Clear SAMP
AD55
AD55
– Convert bit 9.
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. T
SAMP is described in
3
– Convert bit 9.
4
– Convert bit 8.
5
– Convert bit 0.
7 3
6
– One T
AD for end of conversion.
7
– Begin conversion of next channel.
8
– Sample for time specified by SAMC<4:0>.
ADCLK
Instruction
Set ADON
Execution
SAMP
TSAMP
ADxIF
DONE
AD55 AD55 TSAMP AD55
AD50
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)
in the “dsPIC33F/PIC24H Family Reference Manual”.