| 摘要 |
A memory space controller controls a part of normal regions of memory space as a redundancy region for relieving faulty regions. The memory space controller relocates the faulty regions to the part of the normal regions at a final address side of a memory space, thereby forming a continuous memory space. The memory space controller includes at least a faulty address storing table unit, a replace address storing table unit, a first address agreement/disagreement detecting circuit, and an address data selecting circuit.
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