计算机应用与软件2016，Vol.33Issue(8)：238-241,4.DOI:10.3969/j.issn.1000-386x.2016.08.053
一种基于 Cache 机制的嵌入式 Flash 控制器设计
DESIGN OF AN EMBEDDED FLASH CONTROLLER BASED ON CACHE MECHANISM
曹健 1李凌浩 2黄雅东 1吴中海 1张兴1
作者信息
- 1. 北京大学软件与微电子学院 北京 100871
- 2. 北京大学信息科学技术学院 北京 100871
- 折叠
摘要
Abstract
Embedded Flash (eFlash)is widely used in SoC,but the contradiction became more prominent between the flash slow reading speed and the processor high-frequency fetch.To solve the problem,we introduce the cache mechanism in the flash controller,and use set-associative mapping,optimized LRU (Least Recently Used) replacement algorithm and pre-fetching structure to optimize the cache. Compared with the flash controller without cache,the flash controller with cache can enable the processor to take the time to save 38%.关键词
嵌入式 Flash/Cache/组相联映射/LRU/流水预填充Key words
Embedded flash/Cache/Set-associative mapping/LRU/Pre-fetching分类
信息技术与安全科学引用本文复制引用
曹健,李凌浩,黄雅东,吴中海,张兴..一种基于 Cache 机制的嵌入式 Flash 控制器设计[J].计算机应用与软件,2016,33(8):238-241,4.
