基于多层AHB架构的多核SoC设计

Design of Multi-core SoC Based on Multi-layer AHB Architecture

设计并实现一个基于多层AHB架构的多核异构片上系统。以ARM和DSP处理器为核心,对控制密集型任务和计算密集型任务进行合理分配并高效执行。采用分布式存储和共享存储相结合的存储器配置方案,保证数据完整性与程序并行性。利用基于多层AHB的开关矩阵结构,使不同主设备在不竞争同一个从设备时可并行访问总线。实验结果表明,该系统的资源消耗和延迟较小,可支持较大的网络带宽。

In this paper, a heterogeneous multi-core System on a Chip（SoC） based on multi-layer AHB architecture is proposed. The processor subsystem consists of an ARM processor and two DSP processors. Therefore both control-intensive tasks and computing-intensive tasks are executed efficiently. Both distributed memory and shared memory system are employed in order to achieve the trade-off between data integration and program parallelism. The communication mechanism is based on switching matrix architecture. As long as there is no competition for one certain slave, different masters are able to access the bus simultaneously. Experimental result shows that this system has low resource consumption and latency. It is able to achieve high bandwidth.