a hub also needs to sense currents downstream devices use and it should be
able to turn devices off, so a FPGA only implementation is not possible. Is
there any reason you want to implement a hub in an FPGA, while readily
available hubs are cheaper than the FPGA device alone?
Atmel make HUB chips (AT43301 for example), maybe you can find some useful
info in the datasheets.
Jeroen
"jimboluke" <jimlyke@comcast.net> schreef in bericht
news:UemdnYXatLsRQjPdRVn-tw@comcast.com...
Is there an open USB hub anywhere? I can find USB device cores, but not
hubs. -jim
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