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Computer system including system controller with a write buffer and plural read buffers for decoupled busses

  • US 5,745,732 A
  • Filed: 11/15/1994
  • Issued: 04/28/1998
  • Est. Priority Date: 11/15/1994
  • Status: Expired due to Term
First Claim
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1. A virtual, multi-ported memory for facilitating concurrent operations in a computer system having multiple buses, the virtual, multi-ported memory comprising:

  • a single-ported main memory device;

    a memory controller coupled to the main memory device for reading and writing memory locations in the main memory device responsive to signals from buffers;

    a write buffer coupled between the memory controller and the multiple buses of the computer system, for buffering write signals between the multiple buses and the memory controller;

    a first read buffer coupled between the memory controller and a first bus of the multiple buses for buffering read signals between the first bus and the memory controller and for snooping write signals to the write buffer; and

    a second read buffer coupled between the memory controller and a second bus of the computer system for buffering read signals between the second bus and the memory controller and for snooping write signals to the write buffer.

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