MEMORY CONTROLLER, MEMORY SYSTEM AND MEMORY CONTROL METHOD

摘要

According to one embodiment, a memory controller includes a first volatile memory, a second volatile memory, and a controller. The first volatile memory temporarily stores therein data acquired from outside. The controller controls the temporarily stored data to be transferred from the first volatile memory to a non-volatile memory, stores correspondence information of the transferred data to the non-volatile memory in the second volatile memory, and updates correspondence information stored in the non-volatile memory based on the correspondence information stored in the second volatile memory by using the first volatile memory after the data transfer as a work area. The correspondence information represents association between a logical address and a physical address of the data.

主权项

1. A memory controller comprising:
a first volatile memory that temporarily stores therein data acquired from outside; a second volatile memory; and a controller that controls the temporarily stored data to be transferred from the first volatile memory to a non-volatile memory, and that stores correspondence information of the transferred data to the non-volatile memory in the second volatile memory, and updates correspondence information stored in the non-volatile memory based on the correspondence information stored in the second volatile memory by using the first volatile memory after the data transfer as a work area, the correspondence information representing association between a logical address and a physical address of the data.