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Data processing system having memory controller for supplying current request and next request for access to the shared memory pipeline

  • US 5,784,582 A
  • Filed: 10/28/1996
  • Issued: 07/21/1998
  • Est. Priority Date: 10/28/1996
  • Status: Expired due to Term
First Claim
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1. A data processing system, comprising;

  • a shared memory comprising synchronous dynamic random access memory SDRAM and a shared memory pipeline coupled to the SDRAM, which executes read, write and refresh requests for access in a pipeline fashion;

    a plurality of data paths coupled to the shared memory which generate requests for access to the shared memory, the requests having characteristics including a starting address, a length and a type; and

    a memory controller, coupled to the plurality of data paths, which stores requests from the plurality of data paths, supplies a current request for access to the shared memory pipeline, and selects from the stored requests, a next request for access for the shared memory pipeline.

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