User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 733 of 909 2019 Ambiq Micro, Inc.
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Figure 90. Scan Flowchart
18.3.1 Single Mode
In single mode, one trigger event produces one scan of all enabled slots. Depending on the settings of the
accumulate and scale bit field for the active slots, this may or may not result in writing a result to the FIFO.
When the trigger source is an external pin then one external pin transition of the proper polarity will result
in one complete scan of all enabled slots. If the external pin is connected to a repetitive pulse source then
repeating scans of all enabled slots are run at the input trigger rate.
STARTSCAN
Slotn =0
SLOTn Enabled?
LoadAccumulate/
DivideCount
(ADSEL(n):0–127)
Y
N
Y
IncrementSample
Count(n)
Sample,
Accumulate,
InitialTrigger=0
N
SampleCount(n)==ADSEL(n)?
ConversionComplete/
WriteFIFO,InitialTigger=1
Incrementn
n ==7?
InitialTrigger?
SCANDONE
N
N
Y
Y
SampleCount(n)==ADSEL(n)?