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Posted write buffers and methods of posting write requests in memory modules

  • US 20040260891A1
  • Filed: 06/20/2003
  • Published: 12/23/2004
  • Est. Priority Date: 06/20/2003
  • Status: Active Grant
First Claim
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1. A memory module, comprising:

  • a plurality of memory devices; and

    a memory hub, comprising;

    a link interface receiving memory requests for access to at least one of the memory devices;

    a memory device interface coupled to the memory devices, the memory device interface being operable to couple memory requests to the memory devices for access to at least one of the memory devices and to receive read data responsive to at least some of the memory requests;

    a posted write buffer coupled to the link interface and the memory device interface, the posted write buffer being operable to store write memory requests and to subsequently couple the write memory requests to the memory device interface; and

    a read request path operable to couple read memory requests from the link interface to the memory device interface and to couple read data from the memory device interface to the link interface.

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