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NAND flash memory controller exporting a NAND interface

  • US 8,291,295 B2
  • Filed: 08/11/2009
  • Issued: 10/16/2012
  • Est. Priority Date: 09/26/2005
  • Status: Active Grant
First Claim
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1. A controller for interfacing between a host controller in a host device and a flash memory device, the controller comprising:

  • a first NAND interface configured to transfer data between the host controller and the controller using a NAND interface protocol, wherein the first NAND interface is further configured to receive, from the host controller, (i) one of a read command and a write command and (ii) a logical address;

    an address conversion module configured to convert the logical address received from the host controller to a physical address of the flash memory device;

    a second NAND interface configured to transfer data between the controller and the flash memory device using a NAND interface protocol in accordance with the one of the read command and the write command received from the host controller;

    an error correction code (ECC) module configured to calculate ECC bits for data received through at least one of the first and second NAND interfaces; and

    an additional functionality module.

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