To ensure the reliability in updating of management information in a memory card in which address information of a nonvolatile memory is stored in the nonvolatile memory, and only a necessary portion of the address management information is read out to a volatile memory and used.
This memory card comprises the nonvolatile memory, and retains a plurality of address management tables AT for converting a logic address given for the access to the nonvolatile memory to a physical address and an address transformation table index information (ATI) group 1 for managing the AT (AT groups 2 and 3) in the nonvolatile memory, so that necessary address management information is properly expanded to the volatile memory. In the updating of AT generated in data updating, the next AT is written in a writing area different from the present AT.
COPYRIGHT: (C)2004,JPO&NCIPI
Tomoaki Izumi
Masahiro Nakanishi
Satoshi Kasahara
Keisuke Sakai
Hiroki Tachibana
Flute Koichiro
| JP2001142774A | ||||
| JP2002073409A |
Hiroki Naito
Daisuke Nagano
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