Memory controller, flash memory system with memory controller, and method of controlling flash memory

Memory controller, flash memory system with memory controller, and method of controlling flash memory

In a case where at least one of physical blocks composing the virtual block becomes a defective block, use of the virtual block to which the defective block belongs is forbidden and the virtual block of which use is forbidden is managed as a defective virtual block. Replacing the defective block wit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MITSUNAGA TAKUMA, TOMINAGA TAKUMA, KITA KENZO, OHBA HIROYUKI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:In a case where at least one of physical blocks composing the virtual block becomes a defective block, use of the virtual block to which the defective block belongs is forbidden and the virtual block of which use is forbidden is managed as a defective virtual block. Replacing the defective block with a normal block is performed among the defective virtual blocks so as to generate the virtual block to which the defective block does not belong. Then use of the virtual block generated is allowed.