10-22 Return to Section Topics 2600S-901-01 Rev. C / January 2008
Section 10: Digital I/O and Triggering Series 2600 System SourceMeter® Instruments Reference Manual
Figure 10-16: SynchronousA output trigger
Output characteristics:
•The trigger.assert command releases the line if the line is latched low
• The physical line state does not change until all drives (internal and external) release the
line
Synchronous trigger mode
The Synchronous trigger mode is a combination of SynchronousA and SynchronousM trigger
modes. Use the Synchronous trigger mode for backwards firmware compatibility.
The SynchronousA and SynchronousM trigger modes provide additional flexibility. It is
recommended that you use SynchronousA and SynchronousM for firmware v1.4.0 or higher, and
use the Synchronous trigger mode for firmware prior to v1.4.0.
Figure 10-17: Synchronous input trigger
Input characteristics:
• The falling edge generates an input event and latches the internal drive low
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