Microchip Technology MA330019-2 Data Sheet
© 2007-2012 Microchip Technology Inc.
DS70292G-page 385
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
FIGURE 30-25:
ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)
FIGURE 30-26:
ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS (CHPS<1:0> = 01,
SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)
AD55
T
SAMP
Clear SAMP
Set SAMP
AD61
ADCLK
Instruction
SAMP
AD60
DONE
AD1IF
1
2
3
4
5
6
8
5
6
7
1 – Software sets AD1CON. SAMP to start sampling.
2 – Sampling starts after discharge period. T
SAMP
is described in Section 16. “Analog-to-Digital Converter (ADC)”
3 – Software clears AD1CON. SAMP to start conversion.
4 – Sampling ends, conversion sequence starts.
5 – Convert bit 9.
8 – One T
AD
for end of conversion.
AD50
7
AD55
8
6 – Convert bit 8.
7 – Convert bit 0.
Execution
(DS70183) in the “dsPIC33F/PIC24H Family Reference Manual”.
1
2
3
4
5
6
4
5
6
8
1 – Software sets AD1CON. 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
T
SAMP
AD1IF
DONE
AD55
AD55
T
SAMP
AD55
AD50
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)
in the “dsPIC33F/PIC24H Family Reference Manual'.
in the “dsPIC33F/PIC24H Family Reference Manual'.