DATA WRITING METHOD FOR FLASH MEMORY AND CONTROL CIRCUIT AND STORAGE SYSTEM USING THE SAME
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United States of America Patent
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Issued Date -
Dec 23, 2010
app pub date -
Aug 17, 2009
filing date -
Jun 23, 2009
priority date (Note) -
Abandoned
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Abstract
A data writing method for writing data into a flash memory chip is provided, wherein the flash memory chip includes a plurality of physical units. The data writing method includes providing a flash memory control circuit and configuring a plurality of logical units, wherein each logical unit is mapped to at least one physical unit. The data writing method also includes configuring a plurality of logical addresses and mapping the logical addresses to the logical units, wherein at least one logical unit is mapped to at least two non-continuous logical addresses. The data writing method further includes writing the data from a host system into the corresponding physical units according to the logical units mapped to the logical addresses through the flash memory control circuit. Thereby, the data to be moved while writing data into the physical units is reduced, and accordingly the data writing speed is effectively increased.
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