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4.1i XST - XST will target a Virtex-II -6 speed grade when a Virtex-II -7 speed grade has been selected.
Keywords: Virtex, xst, speed, grade, -6, -7
For timing purposes, XST will target a Virtex-II -6 part when a -7 part has been selected.
This problem has been fixed with the release of 4.2i.