Patent ID: 6584014
Filing Date: 2003-06-24
Classification: G11C

Abstract:
A nonvolatile storage system comprising a plurality of nonvolatile memories capable of read-out, erasure, and write-in operations and a control unit for controlling the operations of said nonvolatile memories in response to an external request, wherein when having detected a write-in error at any operation-subject one of said plurality of memories, said control unit can set to the nonvolatile memory having a storage region related to said write-in error such inter-chip alternate information indicating that said storage region related to said write-in error has been replaced with a storage region of any other nonvolatile memory of said plurality of memories and also, when having received the inter-chip alternate information from the operation-subject nonvolatile memory, can change the operation subject from the current operation-subject nonvolatile memory to said any other nonvolatile memory indicated by said inter-chip alternate information.