Data processing system, block erasing type memory device and memory medium storing program for controlling memory device
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United States of America Patent
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Jun 25, 2002
Issued Date -
N/A
app pub date -
Feb 4, 2000
filing date -
Aug 4, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data processing system is provided with a flash memory including a plurality of blocks and capable of erasing stored data collectively in units of block and a memory control unit for accessing the flash memory, the memory control unit having a control circuit for formatting the flash memory according to a format information for substantially coinciding each cluster serving as a logical unit of memory region of the flash memory with integer ones of the blocks and a control circuit for determining a size and position of each cluster and carrying out access control for erasing, write-in and reading of data of the flash memory according to the size and position of the determined cluster.
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