Select reference clock sources for the UltraScale transceivers from the drop-down list.
Default: MGTREFCLK0 of Quad X0Y0
CAUTION! For GTY core configuration and line rate > 16.375G, the GT Refclk selection option will not be available. The Aurora 64b66b core will default to active transceiver Quads GTREFCLK. Each Quads GT Refclk should be individually fed. For more details, see the UltraScale Architecture GTY Transceivers User Guide (UG578) [Ref 6]
GT Selections Tab for 7 Series FPGA
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Select appropriate GT column from the drop-down list.
Default: left