可配置片上数据存储的统一存取

摘要

针对DSP应用领域高实时性和大容量存储的需求，提出了一种基于MCU-DSP融合架构处理器的可配置片上数据存储统一存取设计方法。介绍了片上数据存储的总体结构与其内部数据存储的组织结构，采用非连续字节编址模式和特殊的访存地址分割与组合，结合类零级 Cache 的数据行缓存，实现了片上数据存储 Cache 和SPRAM（Scratch-pad RAM）的可配置与高速统一存取。%A design of unified access of configurable on-chip data storage based on MCU-DSP hybrid ar-chitecture processor was proposed to meet the requirements of the high real-time and high-capacity stor-age in DSP system application field .The overall structure of the on-chip data storage and the organiza-tional structure of the internal data storage was described firstly in this paper .The design method proposed in this paper used both the non-continuous byte addressing mode and the segmentation and? combination of the special access address .We made use of the data line buffer which was similar to the zero -level Cache.The method was able to configure and rapidly unified access the Cache and SPRAM of on-chip data storage by using the data line buffer .