126.96.36.199.5. Vref Margining Tab
You can choose to apply this margining tool to both or only one of the directions ( VREF-in or VREF-out) using the checkboxes near the Run Vref Margining button. The tool reports the passing delay margins for each pin, at each VREF value, for each direction. The Pin ID corresponds to the DQ index on the interface (for example, Pin ID=0 refers to DQ0 on the memory interface).
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