关键词: 仲裁, 带宽分配, 片上网络, 系统芯片

Abstract: A novel arbitration approach for SoC communication is presented. It provides fine-grained bandwidth allocation which is based on dynamically updated records of communication status. The arbiters in NoC routers, multi-port DRAM controllers and shared buses can adopt this approach to improve system performance. This proposed approach is evaluated with a metric called bandwidth shortage, which reflects the closeness of the actual bandwidth allocation to an optimal one. Experimental results reveal that this arbitration approach can reduce the bandwidth shortage decreases by 13%, and shorten the communication latency by 37.5%. Furthermore, the results of hardware implementation show that it is efficient in area and timing for large-and medium-scale SoC designs.

Key words: arbitration approach, bandwidth allocation, network-on-chip(NoC), system-on-chip(SoC)