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Chapter 3
81
Theory of Operation
Waveform Playback
Triggers 1,2,3,4
These four trigger inputs can be used to control waveforms in the sequencer.
Hardware trigger inputs may be configured to generate events on the rising or
falling SYNC clock edges, but not both at the same time. The trigger threshold can
be set between –4.5 and +4.5V. Ports 1 and 2 have a common threshold, and ports 3
an 4 have a common threshold. These two common thresholds are not shared and
can be set independently.
Trigger delays can be set in increments of the SYNC clock (0-255 clocks).
These trigger inputs can be configured to initiate the following events through the
software Control Utility:
Start
starts playback at the beginning of the waveform
Hold
holds at the end of the waveform
Stop
stops playback
Resume
resumes playback at the point in the waveform that play was
held or stopped
The Waveform Advance, Scenario Advance, Waveform Jump, and Scenario Jump
triggers are only available through the programatic interfaces.
LXI T1
These trigger inputs can be configured to the following:
LAN 0-7
provides a way to trigger programmatically over a LAN line
LXI 0-7
the LXI Trigger Bus enables event driven functionality over an
eight channel multipoint LVDS system that can simultaneously
transmit and receive signals
Trigger In
direct trigger
NOTE
To achieve the specified performance, use front panel triggers 1, 2, 3, or 4. Triggers
over the Trigger In and LXI Trigger Bus will have more latency than what is
specified for Triggers 1-4. Triggers over the LAN will experience the most latency.
Содержание N8241A
Страница 8: ...7...
Страница 9: ...8...
Страница 27: ...28 Chapter 1 Introducing the N8241 2A AWGs Getting Started 6 The AWG is now configured to the PC...
Страница 33: ...34 Chapter 1 Introducing the N8241 2A AWGs Maintenance...
Страница 45: ...46 Chapter 2 Basic Operation Using the Graphical User Interface Figure 2 6 N8241A Playback of a Sequence...
Страница 64: ...Chapter 2 65 Basic Operation Using Programmatic Interfaces...
Страница 65: ...66 Chapter 2 Basic Operation Using Programmatic Interfaces...
Страница 73: ...74 Chapter 3 Theory of Operation Waveform Playback Figure 3 2 Advanced Sequencer Flow Chart Figure 3 3...
Страница 76: ...Chapter 3 77 Theory of Operation Waveform Playback Figure 3 3 Waveform Play Flow Chart...
Страница 77: ...78 Chapter 3 Theory of Operation Waveform Playback Figure 3 4 Scenario and Sequence Play Flow Charts...
Страница 88: ...Chapter 3 89 Theory of Operation Multiple Module Synchronization Figure 3 9 Cabling Using and External Clock...
Страница 91: ...92 Chapter 3 Theory of Operation Multiple Module Synchronization...
Страница 109: ...110 Chapter 5 Direct Digital Synthesis Option 330 Theory of Operation Figure 5 7 DDS...