Startscan Signal - Measurement Computing PCI-DAS6031 User Manual

PCI-DAS6031 & PCI-DAS6033 User's Guide
As an output, the A/D STOP TRIGGER signal indicates the event separating the pre-trigger data from the post-
trigger data. The output is an active high pulse with a pulse width of 50 ns.
input and output timing requirements for the A/D STOP TRIGGER signal.
Rising Edge Polarity
Falling Edge Polarity

STARTSCAN signal

The STARTSCAN output signal indicates when a scan of channels has been initiated. You can program this
signal to be available at any of the AUXOUT pins. The STARTSCAN output signal is a 50 ns wide pulse the
leading edge of which indicates the start of a channel scan.
signal.
Figure 4-7. A/D STOP TRIGGER input signal timing
t = 50 ns
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Figure 4-8. A/D STOP TRIGGER output signal timing
t = 50 ns
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Figure 4-9. STARTSCAN Start of Scan timing
4-6
Figure 4-7
t
w
t = 37.5 ns minimum
w
t
w
Figure 4-9 shows the timing for the STARTSCAN
t
w
Functional Details
and Figure 4-8 show the