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Re: i21554 indirect configuration cycles


I had what sounds like the same problem when doing a development with the
21554 and spent many hours trying to find what I was doing wrong. The same
problem also appears when doing indirect IO cycles. I managed to prove that
the writes were working but the reads always returned garbage.

Eventually I threw the 21554 away and replaced it with a 21555 and the
design still works today (I changed nothing else). The 21555 is just a newer
version of the 21554 with evidently some undocumented bugs fixed.

I hope this helps...

Peter Koeppen

----- Original Message -----
From: "Greg Haskins" <ghaskins@tenornetworks.com>
To: <pci-sig@znyx.com>
Sent: Wednesday, December 04, 2002 10:09 PM
Subject: i21554 indirect configuration cycles