PIC24HJ12GP201 Datasheet, PDF (217/234 Pages) Microchip Technology – High-Performance, 16-Bit Microcontrollers

PIC24HJ12GP201/202
FIGURE 21-18:
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
78
56
78
1 – Software sets AD1CON. SAMP to start sampling.
2 – Sampling starts after discharge period. TSAMP is described in Section 28. “10/12-bit ADC without DMA”
in the “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 21-19:
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 28. “10/12-bit ADC without DMA”
in the “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>.}
© 2007 Microchip Technology Inc.
Preliminary
DS70282B-page 215