Skip to main content
C
chain
Visitor II
July 15, 2004
Question

USB of Atlas

  • July 15, 2004
  • 3 replies
  • 870 views
Posted on July 15, 2004 at 13:58

USB of Atlas

    This topic has been closed for replies.

    3 replies

    C
    chainAuthor
    Visitor II
    February 27, 2004
    Posted on February 27, 2004 at 05:52

    How to disable the USB of STPC Atlas ? Does whcih register can do it ?

    Can't find any information for this.

    K
    kaouther
    Visitor II
    March 2, 2004
    Posted on March 02, 2004 at 13:15

    To disable the Atlas USB, you can disconnect the USB device on the PCI bus for all accesses expect configuration accesses.

    Therefore, to disable the USB from the PCI accesses bus, you need just to write 0 in the USB BRIDGE PCI COMMAND REGISTER. You will find a detailed description of this register in the programming manual of atlas available on the web.

    M
    marios
    Visitor II
    July 15, 2004
    Posted on July 15, 2004 at 13:58

    I face the same issue.

    With the programing manual version 1.0, this register has a different definition. It looks like these bits are now read-write thus the accesses can be disabled and the various OS detection routines could not see it.

    I will need to free IRQ lines for a legacy design, so I have to disable the interupt lines associated to the USB also. Has anyone done this?

    Felix

    Terms & ConditionsAccessibility statement