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Increasing the number of I/O decode ranges using SMI traps

  • US 20060026321A1
  • Filed: 08/02/2004
  • Published: 02/02/2006
  • Est. Priority Date: 08/02/2004
  • Status: Active Grant
First Claim
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1. A method of increasing the quantity of input/output (I/O) decode ranges in a chipset, comprising:

  • generating a system management interrupt (SMI) based on information causing access to an I/O address that triggers a SMI trap, the I/O address operably received at the chipset via a bus; and

    automatically reprogramming a decode register in the chipset such that the I/O address forwards the information to a device on the bus.

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