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TUSB2077A: Bandwidth Sharing

Roy Hsu
Genius 9390 points
Part Number: TUSB2077A

Hi Team,

I have a general question about USB hub. If all 7 downstream ports of TUSB2077A are used, will the bandwidth of each downstream port be shared?

i.e. 12 Mbps/7 = 1.71 Mbps

*Adding  as watcher.

Thanks!

Roy

  • 0
    Guru 316940 points

    How bandwidth is distributed among ports is determined only be the USB host controller driver of the OS. Typically, bandwidth for isochronous transfers is reserved on a first-come first-served basis for each stream, and for other transfer types, packets use round-robin scheduling.