嵌入式Flash读取加速技术及实现

发布时间：2018-01-10 04:24

本文关键词：嵌入式Flash读取加速技术及实现　出处：《浙江大学学报(工学版)》2014年09期 　论文类型：期刊论文

【摘要】：为了解决低成本和低功耗应用中的嵌入式Flash读取速度问题,提出多种基于缓存结构的嵌入式Flash读取加速技术及实现,包括低频快速访问技术、回填隐藏技术和改进型关键字优先预取策略,以及具有自适应预取功能的缓存锁定技术、预查找技术等,通过这些技术的整合应用,在提高Flash读取性能的同时,保持较低的功耗.仿真实验证明:在占用资源(缓存容量)较少,频率较低(用于部分低功耗应用)的环境下,这些技术的应用使加速控制器的加速性能与传统的2路组相联缓存相比得到了明显的提升(20%~40%),同时加速控制器中读加速单元的动态功耗与传统2路组相联缓存相比降低了40%左右.
[Abstract]:In order to solve the problem of embedded Flash reading speed in low cost and low power applications, a variety of embedded Flash reading acceleration techniques based on cache structure are proposed, including low frequency fast access technology. Backfill hiding technology and improved keyword prefetching strategy, as well as self-adaptive prefetching cache locking technology, pre-search technology, through the integration of these technologies and applications. At the same time, the Flash reading performance is improved, and the power consumption is kept low. The simulation results show that in the environment of less resources (buffer capacity) and lower frequency (used in some low-power applications). The application of these technologies makes the acceleration performance of the accelerator significantly improve compared with the traditional 2-way group associated cache. At the same time, the dynamic power consumption of the read accelerator in the accelerator is reduced by about 40% compared with the conventional two-way group associated buffer.
【作者单位】：浙江大学超大规模集成电路研究所;杭州中天微系统有限公司;
【分类号】：TP333
【正文快照】： 随着嵌入式系统的日趋复杂,越来越多的存储器技术得以应用.嵌入式Flash存储器既能在掉电的情况下保存数据,又能够进行多次编程,具有较高的灵活性,已经逐渐成为MCU芯片设计中非常重要的程序和数据存储器,可满足高速访问和系统安全性等不同需求[1].然而,与处理器较高的运行频率

【相似文献】