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Message
From: Jecel Assumpcao Jr <jecel@m...>
Date: Wed, 9 Jan 2002 14:13:12 -0500
Subject: [usb] EHCI (was: host controller transceiver?)
On Wednesday 09 January 2002 07:34, Amey Hegde wrote:
> have u finished the ehci?
I haven't even started. Sorry. I am still in the "evaluate all options"
phase for this project while I finish some previous ones.
> How much LCs does it take of virtex2?
My idea was not to implement the EHCI but move most of the
functionality to software. I don't get to reuse drivers, so
compatibility isn't a major issue for me.
But the Virtex 2 probably helps a lot in implementing the EHCI due to
its compact state machines using block RAMs. Following all the complex
data structures in memory requires nearly a simple CPU. Fortunately,
you don't need math more complex than increment/decrement.
-- Jecel
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