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In spite of the mature cell structure, the memory controller architecture of Multi-level cell (MLC) NAND Flash memories is evolving fast in an attempt to improve the uncorrected/miscorrected bit error rate (UBER) and to provide a more flexible usage model where the performance-reliability trade-off point can be adjusted at runtime. However, optimization techniques in the memory controller architecture...
The ever increasing demand to store huge amounts of data at affordable prices has led to the widespread usage of multi level cell (MLC) memory devices. These memories have the capability to store multiple numbers of bits per cell, thus increasing the capacity with minimal effect on hardware. This increase, however, comes at the price of reliability; more bits per cell results in more chances of error...
BCH (Bose-Chaudhuri-Hocquenghem) coding is very useful to correct a small bit error. But the code length n is longer such as a game program stored in a MLC (multi-level cell) flash memory, the decoding circuits takes a lot of computation time. This paper presents a parallel decoding architecture of BCH coding aiming to speed up that guarantees 2-bit error correction. It allows one word data can be...
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