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Flash memory device for performing bad block management and method of performing bad block management of flash memory device
Flash memory device for performing bad block management and method of performing bad block management of flash memory device
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机译:用于执行坏块管理的闪存设备和执行对闪存设备的坏块管理的方法
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摘要
A flash memory device for performing a bad block management and a method of performing bad block management are implemented in hardware level. During a booting procedure of a flash memory device, a bad block-mapping table stored in a predetermined block of memory cell array unit or other nonvolatile memory is stored in a bad block mapping register via a bad block-mapping table loader. An address selector receives a logical address from an external device and compares the logical address with a bad block address stored in the bad block mapping register. A bad block-state controller determines a count number of a re-mapping mark and outputs a re-mapping mark flag to the address selector. The address selector selects a logical address or a bad block address received from the bad block mapping register as a physical address and outputs the physical address to the memory cell array unit.
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