Abstract: With the improvement of circuit integration, NoC (Network on Chip) is a new development trend of SoC( System on Chip) , and power has become a bottleneck in performance improvement. To reduce the power of NoC, a new topology structure-HMesh (Hexagon Mesh) was proposed and the corresponding routing algorithm-HM was constructed. The power consumption of Mesh, I}orus and HMesh were tested on the platform-Orion. The results show that, compared with Mesh and Torus, the average power of HMesh drops by 12.9% and 11.24% respectively as the networks is not in congestion, so it is more suitable for NoC.

Key words: NoC, Topology architecture, Routing algorithms, Low power