基于TTA的嵌入式ASIP设计

在嵌入式微处理器设计中，采用ASIP（application specific instruction processor）处理器设计方法，可以在满足功能和性能要求的同时，缩短嵌入式微处理器产品的研制时间．当前ASIP处理器设计方法还面临着许多问题，如体系结构优化、软件代码的可重定向编译等，这些都阻碍了ASIP处理器设计方法的广泛应用．因此，提出了一种基于传输触发体系结构（transport triggered architecture，TTA）的嵌入式ASIP设计方法，对其设计关键技术进行了详细的讨论，并通过两个目标应用的ASIP微处理器设计实例说明了该方法可以有效解决上述问题，快速开发出满足目标应用程序要求的嵌入式处理器。

A TTA-Based ASIP Design Methodology for Embedded Systems

ASIP (application specific instruction processor) design methodology in the design of embedded microprocessors can not only satisfy the functionality and performance requirements of embedded systems but also shorten the lead time of embedded microprocessors. The current ASIP design method confronts many problems, such as architecture optimization and software retargetable compilation. So a TTA (transport triggered architecture)-based embedded ASIP design methodology is proposed, and the key technique in the design is discussed in detail. Also two target applications of ASIP microprocessor design instances are presented to illustrate that this method can effectively solve these problems and quickly develop embedded microprocessors.