Robuta

https://docs.amd.com/v/u/en-US/en157 Virtex-6 FPGA HX255T, HX380T, and HX565T CES Errata (EN157) - EN157: Errata for the Virtex-6 FPGA... EN157: Errata for the Virtex-6 FPGA HX255T, HX380T, and HX565T CES devices.