Analyzing waveforms Set search parameters
To use
1. Under Type, select one of the following entries DDR Read, DDR Write, and DDR Read & Write
in the Select tab.
2. Specify a source for the selected DDR search in the Configure tab.
3. Click the Settings button to configure the advanced DDR settings.
Use either Auto or Manual option in the Mode drop-down ( under CS Level). When auto is
selected, the midlevel of the chip select source is automatically calculated, and values above
or below this voltage are used to gate mark generation. In custom mode, the specified leve
lis
used as the midlevel.
Specify a value in the Level entry box (under CS Level). This value is used when the CS L
evel
Mode is set to manual.
Specify a value in the Hysteresis entry box (under Edge Detection). This value is use
d for edge
detection in the DDR algorithm.
Specify a value in the Margin entry box (under Termination Logic).
What do you want to do next?
Learn about Search Copy Settings (see page 304).
Learn about setting up DDR search parameters (see page 366).
Set search parameters
From the Analyze menu, select Search; then open the Configure tab.
Overview
Use the controls in these windows to set conditions for the instrument to automatically search and place
marks.
306 DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series
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