Semiconductor recording device

A semiconductor recording device that incorporates a nonvolatile memory composed of a plurality of physical blocks, the physical block being composed of a plurality of pages, and configures the predetermined number of said physical blocks as one group, comprising:

• an ECC generation unit for adding an ECC parity to data inputted in data writing and generating an error correction code;
• a data distribution unit for distributing component units of the error correction code generated by said ECC generation unit to each physical block of one group;
• a data writing unit for writing the data distributed by said data distribution unit into each physical block of the one group of the nonvolatile memory;
• a writing error detection unit for detecting a writing error in the data writing to the nonvolatile memory;
• an error position management unit for registering all physical blocks constituting the same group with the physical block in which a writing error occurred;
• a data reading unit for reading the error correction code from the physical block of the one group of said nonvolatile memory;
• an error correction unit for correcting the data of the physical block in which the writing error occurred, the physical block being registered in said error position management unit, on the basis of data of the physical blocks in which an error does not occur of the group including the registered physical block;
• and
• a sequencer for controlling the semiconductor recording device to:
• register a piece of position information of a writing error that occurred before elapse of a first reference time T1 from occurrence of the previous writing error;
• read blocks registered in said error position management unit at a predetermined timing;
• correct data of the error physical block by using said error correction unit;
• and rewriting the data to a new physical block.