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Data writing method, and memory controller and memory storage device using the same

  • US 8,812,776 B2
  • Filed: 05/22/2012
  • Issued: 08/19/2014
  • Est. Priority Date: 03/29/2012
  • Status: Active Grant
First Claim
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1. A data writing method, for a rewritable non-volatile memory module comprising a plurality of physical blocks, wherein a plurality of logical blocks are configured to map to a part of the physical blocks, the data writing method comprising:

  • configuring a plurality of virtual block addresses to map to at least a part of the logical blocks and providing the virtual block addresses to a host system;

    receiving a write command from the host system, wherein the write command instructs to write a file data to a plurality of first virtual block addresses of the virtual block addresses, and the first virtual block addresses are mapped to a plurality of first logical blocks among the at least the part of the logical blocks;

    writing the file data to the physical blocks mapped to a plurality of second logical blocks of the logical blocks;

    determining whether a program failure is occurred when the file data is written to the physical blocks mapped to the second logical blocks; and

    if the program failure is not occurred, mapping the first virtual block addresses to the second logical blocks.

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