Microchip Technology MA330013 Data Sheet
©
2007 Microchip Technology Inc.
Preliminary
DS70165E-page 347
dsPIC33F
FIGURE 26-26:
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
Set ADON
ADCLK
Instruction
SAMP
ch0_dischrg
ch1_samp
CONV
ADxIF
Buffer(
0
)
Buffer(
1
)
1
2
3
4
5
6
4
5
6
8
1 – Software sets ADxCON. ADON to start AD operation.
2 – Sampling starts after discharge period.
3 – Convert bit 9.
4 – Convert bit 8.
5 – Convert bit 0.
AD50
ch0_samp
ch1_dischrg
eoc
7
3
AD55
6 – One T
AD
for end of conversion.
7 – Begin conversion of next channel.
8 – Sample for time specified by SAMC<4:0>.
T
SAMP
T
CONV
3
4
Execution
T
SAMP
is described in the “dsPIC30F
Family Reference Manual”, Section 17.