An area-efficient dynamically reconfigurable Spatial Division Multiplexing network-on-chip with static throughput guarantee

With an increasing trend to implement Network-on-Chip (NoC)-based Multi-Processor Systems-on-Chips (MPSoCs), NoCs need to have guaranteed services and be dynamically reconfigurable. Many current NoCs consume too much area and cannot support dynamic reconfiguration. In this paper, we present an area-efficient Spatial Division Multiplexing (SDM)-based NoC. We replaced area consuming 32-bit to M-bit serializers with 32-bit to 1-bit serializers in the network interface and incur almost no loss in performance. We also restrict flexibility in the router to achieve further area reduction. A separate area-efficient control network, with an overhead of 3.9% of the total area of the NoC, is developed to support dynamic reconfiguration.