| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a data storage device for improving the efficiency of a read operation by improving the efficiency of inter-channel error correction processing. <P>SOLUTION: A data storage device includes: a channel controller; an error correction controller; and an additional correction module. The channel controller controls the writing and reading of data to each non-volatile memory of a plurality of channels. The error correction controller executes inter-channel error correction processing by using inter-channel error correction code data to a designated correction object in data to be read by the channel controller in a read operation. The additional correction module designates an additional correction object based on error detection by the channel controller, and notifies the error correction controller of the additional correction object during a correction reading operation of reading data necessary for the inter-channel error correction processing by the channel controller. <P>COPYRIGHT: (C)2012,JPO&INPIT |
