dspic33fj128mc204 Microchip Technology Inc., dspic33fj128mc204 Datasheet - Page 379

• Manufacturer Part Number: dspic33fj128mc204
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

FIGURE 31-24:
FIGURE 31-25:
© 2009 Microchip Technology Inc.
Instruction
Execution
ADCLK
DONE
SAMP
AD1IF
1 – Software sets AD1CON. SAMP to start sampling.
2 – Sampling starts after discharge period. T
3 – Software clears AD1CON. SAMP to start conversion.
4 – Sampling ends, conversion sequence starts.
Instruction
Execution
1 – Software sets AD1CON. ADON to start AD operation.
2 – Sampling starts after discharge period. T
3 – Convert bit 9.
4 – Convert bit 8.
ADCLK
DONE
SAMP
AD1IF
“dsPIC33F Family Reference Manual”.
Section 28. “10/12-bit ADC without DMA” in the
Section 28. “10/12-bit ADC without DMA” in the
“dsPIC33F Family Reference Manual”.
Set ADON
AD50
Set SAMP
AD61
AD50
1
ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)
ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS (CHPS<1:0> = 01,
SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)
1
2
Clear SAMP
2
T
AD60
SAMP
T
SAMP
3
4
3
SAMP
SAMP
5
4
AD55
is described in
Preliminary
is described in
6
5
AD55
6
7
7
8
3
5 – Convert bit 0.
6 – One T
7 – Begin conversion of next channel.
8 – Sample for time specified by SAMC<4:0>.
5 – Convert bit 9.
6 – Convert bit 8.
7 – Convert bit 0.
8 – One T
4
AD55
5
AD
AD
6
for end of conversion.
5
for end of conversion.
AD55
6
7
DS70291C-page 377
T
SAMP
8
8
AD55