Follow link in first column above for a readme file.
Xilinx devices on the TRM, CRM, PCM and DCM are programmed by the local micro-controller. In general the PROM issue will change if either the micro software or the Xilinx code is changed.
Xilinx archives
The link in the table leads to an ftp directory of the same name. Typically this has three files:
6nnnnnnx.zip = Orcad design archive. Contains schematics and other files needed by Orcad
6n_plot.zip = Orcad schematic plots in HPGL format.
library.zip = library of the Orcad parts used in this design.
A full copy of the source libraries is in SDT4OLD.ZIP