PIC24HJ16GP304-E Datasheet, PDF (232/274 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers

PIC24HJ32GP202/204 AND PIC24HJ16GP304
FIGURE 22-22:
ADC 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
AD61
DONE
AD1IF
Buffer(0)
Buffer(1)
Clear SAMP
AD60
TSAMP
AD55
AD55
12
34 5 6
7
1 – Software sets AD1CON. SAMP to start sampling.
2 ^{– Sampling starts after discharge period. TSAMP is described in}
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)
in the “dsPIC33F/PIC24H Family Reference Manual”.
3 ^{– Software clears AD1CON. SAMP to start conversion.}
4 ^{– Sampling ends, conversion sequence starts.}
8
56
78
5 ^{– Convert bit 9.}
6 ^{– Convert bit 8.}
7 – Convert bit 0.
8 ^{– One TAD for end of conversion.}
FIGURE 22-23:
AD50
ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS (CHPS<1:0> = 01,
SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)
ADCLK
Instruction
Execution
Set ADON
SAMP
AD1IF
TSAMP
AD55
AD55
TSAMP
AD55
DONE
12
34
5 6734
56
8
1 ^{– Software sets AD1CON. ADON to start AD operation.}
2 – Sampling starts after discharge period. TSAMP is described in
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)
in the “dsPIC33F/PIC24H Family Reference Manual”.
3 ^{– Convert bit 9.}
4 ^{– Convert bit 8.}
5 ^{– Convert bit 0.}
6 ^{– One TAD for end of conversion.}
7 ^{– Begin conversion of next channel.}
8 ^{– Sample for time specified by SAMC<4:0>.}
DS70289H-page 232
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