A memory with a hierarchical structure

Abstract

The invention discloses a memory with a hierarchical structure. The memory comprises L pages with the same size, wherein L1 pages form a first data area used for storing valid data, and the remaining L2 pages form a first shadow area used for extending the reliability function of the memory; each page comprises M data units with the same size, wherein M1 data units form a second data area used for storing valid data, and the remaining M2 data units form a second shadow area used for extending the reliability function of the memory; each data unit comprises N bytes, wherein N1 bytes form a third data area used for storing valid data, and the remaining N2 bytes form a third shadow area used for extending the reliability function of the memory; L=L1+L2, M=M1+M2, N=N1+N2, and L, L1, L2, M, M1, M2, N, N1 and N2 are all positive integers larger than 1.

Description

technical field [0001] The invention relates to the technical field of storage, in particular to a storage with a hierarchical structure. Background technique [0002] With the progress and development of the times and technology, electronic products not only need to meet the basic requirements of availability, but also have attracted great attention and attention to the differentiated characteristics of high safety, high performance, low power consumption, and high reliability. As an important component memory, in addition to the traditional requirements, higher requirements are put forward in terms of high reliability and high security. In order to meet these requirements, the industry has proposed many methods, and the efficient implementation of these methods depends on improving the traditional memory structure. [0003] With the rapid development of integrated circuits, the integration of memory is getting higher and higher, and the capacity is also increasing. Especi...

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