| 摘要 |
A content data storage device which stores content data in nonvolatile memories from which data is erasable in units of blocks includes a bus width conversion unit converting a transmission bus to buses of a plurality of systems, a storage unit including a plurality of sets of memories, a plurality of switching units selectively switching between derivation of the content data and derivation of command signals and addresses, a controller configuring to perform (i) conversion control, (ii) state control, (iii) supply control, and (iv) switching control, the controller controlling the operation for reading and writing the content data with reference to the nonvolatile memories, and, a plurality of switch on and off units selectively switching on or off the content data, the command signals and the addresses.
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