Changes between Version 3 and Version 4 of USB


Ignore:
Timestamp:
05/01/2018 06:56:22 PM (6 years ago)
Author:
Tim Harvey
Comment:

fixed USB 3.0 speed and added XHCI definition

Legend:

Unmodified
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  • USB

    v3 v4  
    1212 * USB 1.0 - USB !LowSpeed (1.5mbps) and USB !FullSpeed (12mbps)
    1313 * USB 2.0 - adds USB !HighSpeed (480mbps)
    14  * USB 3.0 - adds USB !SuperSpeed (10gbps)
     14 * USB 3.0 - adds USB !SuperSpeed (5gbps)
    1515
    1616== Host Controllers ==
    … …  
    1919 * **Open Host Controller Interface (OHCI)**: Produced for USB 1.0 and 1.1 by Compaq, Microsoft, and National Semiconductor. Supports Low-Speed and Full-Speed and tends to be more efficient then UHCI by performing more functionality in hardware.
    2020 * **Extended Host Controller Interface (EHCI)**: Created for USB 2.0 after USB-IF requested that a single host controller specification be created. EHCI is used for !HighSpeed transactions and delegates !LowSpeed and !FullSpeed transactions to an OHCI or UHCI sister controller.
     21 * **eXtensible Host Controller Interface (xHCI)**: Created for USB 3.0 and also known as the USB 3.0 host controller specification.
    2122
    2223
    … …  
    2728 * **USB !FullSpeed** (12mbps) (USB 1.0 UHCI/OHCI)
    2829 * **USB !HighSpeed** (480mbps) (USB 2.0 EHCI)
    29  * **USB !SuperSpeed** (10gbps) (USB 3.0 XHCI)
     30 * **USB !SuperSpeed** (5gbps) (USB 3.0 XHCI)
    3031
    3132