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Computer system with system ROM including serial-access PROM coupled to an auto-configuring memory controller and method of shadowing BIOS code from PROM

  • US 6,112,303 A
  • Filed: 02/18/1999
  • Issued: 08/29/2000
  • Est. Priority Date: 12/20/1996
  • Status: Expired due to Term
First Claim
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1. A computer system comprising:

  • a processor;

    an internal serial-access programmable read-only-memory (PROM) for storing BIOS code;

    a memory controller coupled to said processor and serially and directly coupled to said PROM for addressing said PROM and for loading the BIOS code from said PROM comprising;

    a serial PROM interface coupling said memory controller and said serial PROM allowing communication between said controller and said PROM; and

    serial PROM interface control logic for controlling said serial PROM interface; and

    an internal parallel-access programmable read-only-memory coupled to the memory controller.

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