A TCMS-based architecture for GALS NoCs.

Jungeblut T, Ax J, Porrmann M, Rückert U. A TCMS-based architecture for GALS NoCs. In: IEEE Circuits and Systems Society, Institute of Electrical and Electronics Engineers, eds. 2012 IEEE International Symposium on Circuits and Systems. Piscataway, NJ: IEEE; 2012.We propose a TCMS based architecture of GALS NoCs based on the GigaNoC approach, a scalable NoC featuring packet-switched wormhole routing. At a clock frequency of 750 MHz a link bandwidth of up to 6 GByte/s is achieved. The resource efficiency of mesochronous and asynchronous communication links is analyzed. The asynchronous coupling of the PE to the switch boxes is evaluated. This allows for multi-voltage/multi-frequency scenarios, where the performance of each PE is adapted to the current performance requirements. TCMS-based communication links and asynchronously coupled PEs allow for the high efficiency of GALS-based NoCs with moderate additional resource requirements