INFORMATION STORAGE DEVICE, MEMORY ACCESS CONTROL METHOD, AND COMPUTER PROGRAM

摘要

A device and a method that lock a memory subject to whether data stored has been read from a predetermined data area in a memory. When data is read from a memory of an information storage device, such as a memory card, in response to a request from a host device connected to the information storage device, whether or not the data area from which to read data is a predetermined lock-adapted data area is determined based on, for example, the logical number of a cluster. A memory locking processing is performed subject to the determination that data has been read from a lock-adapted data area. This configuration prevents data from being read multiple times from an information storage device, such as a memory card, and makes the so-called read-once access control possible.