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Message
From: Mohammad AK<perocletos@y...>
Date: Sat Mar 6 10:38:44 CET 2004
Subject: [usb] USB2.0 Hub
Hello all ,
there is a question about USB2.0, what happens if we ahd the following scenario :
USB2.0 Hub connected to USB2.0 Host
two USB Devices connected to the Hub, 2.0 and a 1.1
each one of them should work on it rated speed (i.e. 2.0 will work at high speed and the 1.1 will be at Full speed)
every 1ms the 1.1 should have a start of frame paket
every 125us the 2.0 should have a start of frame (microframe)
how does the USB deals with every 8 microframes ? ( 8*125us=1ms !! )
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