16.7.4. Eye Diagram
The Generate Eye Diagram feature uses calibration data patterns to determine margins at each Vref setting on both the FPGA pins and the memory device pins. A full calibration is done for each Vref setting. Other settings, such as DQ delay chains, will change for each calibration. At the end of a Generate Eye Diagram command, a default calibration is run to restore original behavior
The Generate Eye Diagram feature is available for DDR4 and QDR-IV protocols, on Arria 10 devices.
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