General Description: Version 1.62 of the Virtex-II Pro Speed Files became available after the release of 4.2i Service Pack 3 (which contained version 1.56). All users should download and install the new version.
Highlighted changes in Virtex-II Pro Speed Files Version 1.62 are:
1. Support for a new -5 speed grade. 2. Latches have been given a slightly faster D-to-Q time, which will appear in parameters such as Tioolp, Tiotlpon, and Tifnctl. 3. Flip-flops and latches have been given a slightly slower CLK-to-Q time. 4. The D-to-CLK setup time for flip-flops has been significantly reduced (for paths going through X/Y) to adjust for the slower CLK-to-Q time and enable higher clock frequencies. 5. The multiplier is approximately 25% faster. (This may improve even more in future speed file releases). 6. The Block RAM CLK-to-Out is faster. (This may also improve in future speed file releases). 7. The setup requirement for the S input on BUFGMUX has been increased.