Method of Accessing Data in Multi-Layer Cell Memory and Multi-Layer Cell Storage Device Using the Same
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United States of America Patent
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Issued Date -
Apr 30, 2015
app pub date -
Oct 28, 2013
filing date -
Oct 28, 2013
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Abandoned
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Abstract
A method of accessing data in a multi-layer cell (MLC) memory includes using single-layer cell (SLC) configuration to transfer a portion of a plurality of memory units in the MLC memory to an SLC area to form a plurality of MLC memory units and a plurality of SLC memory units; storing data in the plurality of SLC memory units when the data is assigned to be stored in an MLC memory unit; mapping the MLC memory unit to the SLC memory units; reading the data by obtaining the data in the SLC memory units corresponding to the MLC memory unit; and reallocating the SLC memory units to use MLC configuration when an update of data is involved in the MLC memory unit or a new data is assigned to be stored in at least one of the SLC memory units.
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