| 摘要 |
A memory controller includes a host interface, a holding circuit and a control circuit. The memory controller controls a semiconductor memory. The semiconductor memory includes memory blocks. The host interface is connectable to a host apparatus and receivable of write data and an address. The holding circuit is capable of holding the address. The control circuit searches information indicating an existence of a parent directory from the write data, and holds the address in the holding circuit when the information is detected. The control circuit successively writes the write data to the same memory block when a new write access is made with respect to the same address as the address held in the holding circuit.
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