Control device suitable to quick flash memory card and its construction methods

Abstract

A control device suits for flash memory card and its method features in that after the control device is turned on and finishes scanning PBA one by one of every information block of a memory card, itwill plan and divided the memory card into multiple fragment zones according to the capacity of a fragment PB mapping list, matching with another FAT image appended list in the control device to image the record of FAT logic address. When the host wants to operate on file memory, the fragment PB image list will be the image of information part in the fragment zone and the appended list will cooperate the operation system to provide quick to FAT when renewing.

Description

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AI Technical Summary

Problems solved by technology

[0006] 1. Data storage devices such as Smart Media memory card, Memory Stick memory card, or NAND flash memory all use the data block (Block) as the basic unit for erasing or storing data. With the increase of memory capacity, The number of its data blocks also increases accordingly, but the memory capacity of the mapping table is limited, so it cannot be compatible with higher-capacity data storage devices used in subsequent updates (because subsequent memory cards require larger memory) ;

[0007] 2. If high-capacity flash memory cards are required, the random ac

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