Section 3: Functions and features
Series 2600B System SourceMeter® Instrument Reference Manual
3-64
2600BS-901-01 Rev. B / May 2013
Synchronous trigger mode
The synchronous trigger mode is a combination of SynchronousA and SynchronousM trigger modes.
Use the Synchronous trigger mode for compatibility with older Keithley Instruments products.
Keithley Instruments recommends using SynchronousA and SynchronousM modes only.
Input characteristics:
•
The falling edge generates an input event and latches the internal drive low.
Figure 83: Synchronous input trigger
Output characteristics
:
•
In addition to trigger events from other trigger objects, the
digio.trigger[
N
].assert()
and
tsplink.trigger[
N
].assert()
functions generate a low pulse for the programmed pulse
duration if the line is latched low, a falling edge does not occur.
•
A normal falling edge pulse generates when the internal drive is not latched low and the
digio.trigger[
N
].assert()
and
tsplink.trigger[
N
].assert()
functions are issued.
•
To mirror the SynchronousA trigger mode, set the pulse width to 1
µ
s or any small nonzero value.
•
Action overruns are disabled.
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