Patent ID: 8782338
Filing Date: 2014-07-15
Classification: G06F,G11C

Abstract:
1. A method of writing and reading data in electrically erasable and programmable nonvolatile memory cells, the method comprising: defining data pages in a first nonvolatile memory zone; defining in the data pages programmable data blocks; defining in a second nonvolatile memory zone, metadata pages comprising metadata structures associated with the data pages present in the first nonvolatile memory zone and wherein each of the data pages is associated with a metadata structure of the metadata pages, each metadata structure including a wear counter containing a value representative of a number of times that the data page associated with the metadata structure has been erased; attributing to each metadata page a wear counter containing a value representative of a number of times that a metadata page to which the wear counter is attributed has been erased; and arranging a wear counter attributed to a metadata page inside the metadata page.