> It's regretful to see that processor documents (User Manual,
 > Application Notes, ...)  once available online are withdrawn due to
 > product EOL.  IDT/QED used to be a good source, but apparently some
 > (many, indeed) are not available anymore.

FWIW, IDT's R5000 docs are still online at:

http://www.idt.com/products/pages/Standalone_Processors-79RC5000.html

I don't think there's anything missing there (from what I remember of
the available IDT docs).

- S