General Description The Xilinx Reed Solomon Encoder and Decoder that is currently available with 3.xi_ip_update3 is version 1_0. However, the data sheet indicates that version 2_0 is included; the actual available core is v1_0, which does not support Virtex-II architecture.
Solution
Xilinx Reed-Solomon Encoder and Decoder v2_0 will have Virtex-II architecture support; this became available in 3.xi_ip_update4, which was released in May, 2001.