- Wondering which SoC bus to use? Here is a comparison of the ARM AMBA bus, Altera Avalon bus, IBM/Xilinx CoreConnect bus and the public-domain Wishbone bus.
- Here are datasheets for the Spartan-3, Spartan-IIE, Spartan-II, Virtex and XC4000 FPGAs and the XC9500 / XC9500XL CPLDs.
- Here's a link to a bunch of links to glossaries, FAQs and primers about Xilinx FPGAs.
- Michigan State university maintains a site with tutorials on Xilinx devices and software.