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An adaptive ECC scheme for dynamic protection of NAND Flash memories
Yuan L(袁柳); Liu HD(刘怀达); Jia PG(贾品贵); Yang YP(杨一平)
2015
会议名称2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
会议录名称2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
页码1052 - 1055
会议日期19-24 April 2015
会议地点Brisbane, Australia
摘要Error correcting code (ECC) is an essential method in protection of NAND Flash memories. Complexity of it is increasing rapidly with the increment of error correction capability. Traditionally, the software implementation of ECC which has less cost and high flexibility is nearly ignored due to its inefficiency. This situation can be changed by design of faster software-based ECC scheme. We have found that the reliability is constantly changing with Program/Erase cycles and retention time during the lifetime of memories. However, regular ECC methods fail to take into account the variable kinds of reliability and result in a great waste of computations. In order to achieve better software implementation, an adaptive ECC scheme is proposed to provide various amount of protection. By assigning appropriate ECC, an adaptive ECC with Hamming and more efficient BCH codes is designed to provide corresponding protection. Proposed ECC scheme is suitable for diverse devices and applications. The coding time can be obviously decreased, making it possible to replace hardware methods with software methods. 
关键词Error Correcting Code Flash Memories Adaptive Protection Software Bch
学科领域工科
DOI10.1109/ICASSP.2015.7178130
收录类别EI
语种英语
引用统计
文献类型会议论文
条目标识符http://ir.ia.ac.cn/handle/173211/11454
专题综合信息系统研究中心
作者单位中国科学院自动化研究所
推荐引用方式
GB/T 7714
Yuan L,Liu HD,Jia PG,et al. An adaptive ECC scheme for dynamic protection of NAND Flash memories[C],2015:1052 - 1055.
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