DSPIC33FJ64GP204T-I/SO データシートの表示（PDF） - Microchip Technology

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DSPIC33FJ64GP204T-I/SO

High-Performance, 16-bit Digital Signal Controllers

Microchip Technology 

dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04

FIGURE 30-21:

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

Clear SAMP

AD60

TSAMP

AD55

AD55

12

34 5 6

78

56

78

1 – Software sets AD1CON. SAMP to start sampling.

2 – Sampling starts after discharge period. TSAMP is described in Section 28. “Analog-to-Digital Converter (ADC)

without DMA” (DS70210) in the “dsPIC33F/PIC24H Family Reference Manual”.

3 – Software clears AD1CON. SAMP to start conversion.

4 – Sampling ends, conversion sequence starts.

5 – Convert bit 9.

6 – Convert bit 8.

7 – Convert bit 0.

8 – One TAD for end of conversion.

FIGURE 30-22:

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

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

AD50

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 28. “Analog-to-Digital Converter (ADC) without DMA”

(DS70210) 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>.

 2009 Microchip Technology Inc.

Preliminary

DS70292D-page 359

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