Memory Controller, Nonvolatile Storage Device, Nonvolatile Storage System, and Memory Control Method

摘要

The invention presents a memory controller capable of shortening the creation time of address management table at the time of initialization of memory card, while avoiding decline of access speed due to process of writing back the address management table in normal operation. The memory controller 114 includes a read-write memory 113 for temporarily storing the address management table 112 , a memory control unit 122 for writing, in a nonvolatile memory 115 , an address management table temporarily stored in the read-write memory and address range specifying information for specifying the changeover destination address range, when the physical block of data writing destination is changed over from a certain address range to other address range, and an address management table generation unit 107 for reading out the distributed management information used for managing the state of physical block included in the address range specified based on the address range specifying information at the time of initialization, and generating the address management table 112 based on the distributed management information being read out.