摘要
串行总线具有高带宽、占用布线资源少的特点,适用于高速通信,因此文中设计了一个基于异构SoC的具有低延迟并行总线和高带宽串行总线的串并混合总线系统模型。文中还基于异构SoC中各功能单元对数据传输带宽和延迟需求不同的特点,制定了针对串并混合总线的仲裁策略,实现了仲裁器对不同类型数据包进行分配传输的过程。文中还对静态分配和动态分配两种策略的传输时间进行评估,在动态分配策略下最高可减少81.8%的传输时间,在静态分配策略下平均可减少67%的传输时间。
The serial bus has the characteristics of high bandwidth and less wiring resources,which is suitable for high-speed communication.Therefore,a hybrid serial-parallel bus system model is designed based on heterogeneous SoC,which has low-latency parallel bus and high-bandwidth serial bus.Based on the characteristics of the bandwidth and latency requirements of data transmission in each functional unit of heterogeneous SoC,an arbitration strategy is developed for serial-parallel hybrid bus,which realizes the process of assigning and transmitting different types of data packets by the arbiter.The transmission time of two strategies is evaluated:static allocation and dynamic allocation.Under the dynamic allocation strategy,the transmission time can be reduced by up to 81.8%,and the average transmission time can be reduced by 67%under the static allocation strategy.
作者
季永康
景乃锋
王琴
JI Yong-kang;JING Nai-feng;WANG Qin(School of Electronic Information and Electrical Engineering,Shanghai Jiaotong University,Shanghai 200240,China)
出处
《信息技术》
2020年第6期41-45,共5页
Information Technology
基金
中国国家自然科学基金(61772331)。
关键词
异构SoC
片上通信
串并仲裁
IP仲裁
heterogeneous SoC
communication on chip
arbitration of serial-parallel bus
arbitration of IP-selection
