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CONTROLLER, SEMICONDUCTOR STORAGE DEVICE AND METHOD OF CONTROLLING DATA WRITING

  • US 20140244903A1
  • Filed: 06/05/2013
  • Published: 08/28/2014
  • Est. Priority Date: 02/28/2013
  • Status: Active Grant
First Claim
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1. A memory controller configured to control a storage memory, the memory controller comprising:

  • a command decode part;

    a mode selection part that selects one of a MLC-mode and a SLC-mode, after a write command is decoded by the command decode part; and

    a write part that executes a data writing to the storage memory by using one of the MLC-mode and the SLC-mode selected by the mode selection part,wherein the mode selection part is configured to;

    check whether a first data wrote from a host to a buffer memory is a time-continuous data that is wrote continuously during a predetermined period;

    execute the data writing of a second data from the buffer memory to the storage memory in the MLC-mode, when the first data is the time-continuous data; and

    execute the data writing of the second data from the buffer memory to the storage memory in the SLC-mode, when the first data is not the time-continuous data.

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