The MIG 7 Series tool includes the "Verify Pin Changes and Update Design" and "Fixed Pin Out" flows which allow users to upload UCF and mig.prj ("Verify UCF and Update Design" only) files to verify custom/modified pin-outs and generate corresponding MIG 7 Series designs. Currently, these flows only support uploading UCF files. What is the flow for XDC files?
Starting with the release of MIG 7 Series v1.8 (to be released with ISE 14.4 / Vivado 2012.4 design tools), uploading XDC files to "Verify Pin Changes and Update Design" and "Fixed Pin Outs" will be supported. Until then, users must upload theUCF files. Upon core generation, the output will contain the appropriate XDC file based on the UCF uploaded and core configuration.