DSPIC33FJ12MC02ESS datasheet(267/284 Pages) MICROCHIP

267 / 284 page

Preliminary

DS70265B-page 265

dsPIC33FJ12MC201/202

FIGURE 23-23:

ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS

(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)

FIGURE 23-24:

ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS (CHPS<1:0> = 01,

SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)

AD55

TSAMP

Clear SAMP

Set SAMP

AD61

ADCLK

Instruction

SAMP

AD60

DONE

ADxIF

1 – Software sets ADxCON. SAMP to start sampling.

2 – Sampling starts after discharge period. TSAMP is described in Section 28. “10/12-bit ADC without DMA”

3 – Software clears ADxCON. SAMP to start conversion.

4 – Sampling ends, conversion sequence starts.

5 – Convert bit 9.

8 – One TAD for end of conversion.

AD50

AD55

6 – Convert bit 8.

7 – Convert bit 0.

Execution

in the “dsPIC33F Family Reference Manual”.

1 – Software sets ADxCON. ADON to start AD operation.

2 – Sampling starts after discharge period. TSAMP is described in

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>.

ADCLK

Instruction

Set ADON

Execution

SAMP

TSAMP

ADxIF

DONE

AD55

TSAMP

AD55

AD50

Section 28. “10/12-bit ADC without DMA” in the “dsPIC33F Family

Reference Manual'.

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