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SOLID STATE STORAGE DEVICE CONTROLLER WITH EXPANSION MODE

  • US 20120233392A1
  • Filed: 05/29/2012
  • Published: 09/13/2012
  • Est. Priority Date: 09/30/2008
  • Status: Active Grant
First Claim
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1. A solid state storage device controller comprising:

  • a memory control circuit for controlling at least a primary, faster memory device in a non-expansion memory mode and the primary memory device and an expansion memory device in an expansion mode; and

    a plurality of memory communication channels for coupling at least one slower memory device to the solid state storage device controller wherein, in the expansion mode, at least one of the plurality of memory communication channels is configured to couple the expansion memory device to the memory control circuit,wherein a time to access the faster memory device is less than a time to access the slower memory device;

    further wherein the memory control circuit is a plurality of sequencers configured to control the timing and control signals to the primary memory in the non-expansion memory mode and controls the timing and control signals to both the primary and the expansion memory devices in the expansion mode.

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