中文摘要：

面向媒体应用的可重构架构中，配置信息的调度严重限制了可重构系统的性能提升．为此，提出一种层次化配置信息缓存的组织结构，并面向媒体应用提出一种基于配置信息分级策略的配置信息缓存管理机制，包括基于预解析的配置信息预取机制和基于混合优先级的配置信息替换策略．实验表明，采用该设计方案后配置信息的访问性能提高4．34倍．采用所述配置信息缓存设计方案的可重构系统可在200MHz情况下满足1080P，30fps的实时解码需求，与同类架构相比性能提高1．8倍以上．

英文摘要：

The scheduling process of configuration context severely limits the performance of reconfigurable systems for multimedia applications. This paper proposes a management mechanism for configuration cache based on a hierarchical configuration context organiza- tion mechanism. It includes a configuration context prefetching mechanism based on pre- parsing and a hierarchical replacement strategy based on hybrid priorities. Experimental results show that the design described in this paper can improve configuration information access performance by 4.34 times. The proposed data cache structure has been applied in a reconfigurable system and implemented in a real chip. Processing performance of the reconfigurable system based on the proposed data cache structures is better than that of other reconfigurable architectures by more than 1.8 times.