Series 2600B System SourceMeter® Instrument Reference Manual
Section 3: Functions and features
2600BS-901-01 Rev. B / May 2013
3-63
Synchronous acceptor trigger mode (SynchronousA)
Use the synchronous acceptor trigger mode (SynchronousA) in conjunction with the SynchronousM
trigger mode. The roles of the internal and external drives are reversed in the SynchronousA trigger
mode.
Input characteristics:
•
The falling edge is detected as the external drive pulses the line low, and the internal drive
latches the line low.
Figure 81: SynchronousA input trigger
Output characteristics:
•
In addition to trigger events from other trigger objects, the
digio.trigger[
N
].assert()
and
tsplink.trigger[
N
].assert()
functions release the line if the line is latched low. The pulse
width is not used.
•
The physical line state does not change until all drives (internal and external) release the line.
•
Action overruns occur if the internal drive is not latched low and a source event is received.
Figure 82: SynchronousA output trigger
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