Thread (7 messages) flat view 7 messages, 4 authors, 2006-09-08

Re: MPC8360E USB Host Controller Driver

From: Alex Zeffertt <hidden>
Date: 2006-09-07 10:59:17

quoted
manual, they told that this controller does not belong to 
UHCI or OHCI standard.
Yes, you can call it FHCI if you like. :)
I heard that on the PQII (82xx) devices the FHCI required
intervention from the core, even when there was zero traffic
on the USB.  I think this was because the core had to
continuously service a 1ms interrupt.  This generates significant
extra loading, making it worth considering using a cheap EHCI chip
instead....

Does anyone know if this is still the case with the PQII Pro (83xx)?

Alex
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