When I use PACE and open an MGT/GTP design which already has pin assignment constraint, I see DRC errors:
"ERROR:FloorplanEditorC - <signal>: The bank number specified does not exist
ERROR:FloorplanEditorC - <signal>: The bank number specified does not exist
ERROR:FloorplanEditorC - 2 DRC errors or warnings found"
Since these signals are dedicated MGT pins and they don't have bank numbers, why does the tool issue these errors?
These errors can be safely ignored. The MGT/GTP pins cannot be assigned using PACE and the tool will automatically know the correct pinouts as long as you have the instance location constraints for the MGT/GTP primitives.
This will be fixed in future software releases.