Networks-on-chip (NoC) are a scalable interconnect solution to multiprocessor systems on chip (MPSoC). NoCs transport data in packets which are fragments of transactions, such as read and write actions of IPs. For debug purposes, reconstructing transactions at run-time is essential. Run-time analysis of the NoC behavior at transaction level makes the complete MPSoC easier to understand. We present a NoC analyzer able to monitor NoC transactions at run-time. The proposed hardware transaction monitor is able to reconstruct on-chip, at run-time, NoC transactions from bit-level intercepted router link communication. Four NoC analyzer modes are detailed raising the abstraction level gradually from physical raw to logical connectionbased, transaction-based and abstract transaction eventbased. Each mode is analyzedfor area and bandwidth in an experimental setup based on several ,Ethereal NoC designs.A transaction monitor has an area cost of 0.026mm2 in a 0.13um CMOS technology, and for several MPEG/audio case studies, the entire monitoring system adds an average of 5% to the NoC area. We show the versatility of our NoC analyzer by run-time monitoring user connections and the Configuration Master IP in the NoC.
In this paper, the technique of optimal interconnects width and spacing is analyzed to reduce the area, delay and area-delay-product of multi-level signaling on-chip bus. To capture the delay impact from cross-coupling capacitance in the deep sub-micron on-chip bus, the Miller Capacitance Factor (MCF) for 4-level signals is developed. Results show that our proposed technique reveals the trade-off between bus area and delay to achieve the optimized bus configuration.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.