Microchip Technology MA330016 データシート
dsPIC33FJ32GP202/204 and dsPIC33FJ16GP304
DS70290J-page 250
© 2007-2011 Microchip Technology Inc.
FIGURE 22-22:
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 22-23:
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
Buffer(0)
Buffer(1)
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
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
“dsPIC33F/PIC24H Family Reference Manual”.
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183) in the
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>.
Section 16. “Analog-to-Digital Converter (ADC)” (DS70183) in the
ADCLK
Instruction
Set ADON
Execution
SAMP
T
SAMP
AD1IF
DONE
AD55
AD55
T
SAMP
AD55
AD50
“dsPIC33F/PIC24H Family Reference Manual”.