Storage device for updating flash memory pages according to error-correcting codes and method thereof
An error correction and storage device technology, applied in the direction of response error generation, redundant code error detection, etc.
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[0018] see figure 1 as well as figure 2 , figure 1 is a functional block diagram of the storage device 10 used to update the pages of the flash memory in the present invention, figure 2 yes figure 1 Schematic of the flash memory 20. The storage device 10 includes a flash memory 20 , an ECC detector 30 , a controller 40 and a register 50 . Flash memory 20 can be NAND flash memory, and it comprises several blocks 22, and each block 22 comprises several pages 24, storage section (data area) 26 and spare section (spare area) 28, the data of storage section 26 The capacity can be 2048 bytes, which is used to store data. The data capacity of the spare section 28 can be 64 bytes, and is used to record the error correction code corresponding to the data. Generally, every 512-byte storage section 26 corresponds to a 16-byte spare section 28 . When the storage section (data sector) 26 stores more error bytes, the number of bits used by the error correction code stored in the sp...
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