Alexandre M. Amory

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Network-on-Chip has recently emerged as an alternative communication architecture for complex system chip and different aspects regarding NoC design have been studied in the literature. However, the test of the NoC itself for manufacturing faults has been marginally tackled. This paper proposes a scalable test strategy for the routers in a NoC, based on(More)
This paper proposes a wrapper design for interconnects with guaranteed bandwidth and latency services and on-chip protocol. We demonstrate that these interconnects abstract the interconnect details and provide predictability in the data transfer, which are desirable not only for the functional domain but also for the test application. The proposed wrapper(More)
Routing algorithms for NoCs were extensively studied in the last 12 years, and proposals for algorithms targeting some cost function, as latency reduction or congestion avoidance, abound in the literature. Fault-tolerant routing algorithms were also proposed, being the table-based approach the most adopted method. Considering SoCs with hundred of cores in a(More)
Silicon technologies advances brought the possibility of integrating billions of transistors in a VLSI die. However, as these transistors become smaller due to fabrication method enhancements, some aspects that were negligible in older technologies emerge as difficulties for the design in current and future technology nodes. In this context, fully(More)
A new core test wrapper design approach is proposed which transports streaming test data, for example scan test patterns, into and out of an embedded core exclusively via (some of) its functional data ports. The latter are typically based on standardised protocols such as AXI, DTL, and OCP. The new wrapper design allows a functional interconnect, such as an(More)
Nitrogen-limited and nitrogen-sufficient cell cultures of Selenastrum minutum (Naeg.) Collins (Chlorophyta) were used to investigate the dependence of NH(4) (+) assimilation on exogenous CO(2). N-sufficient cells were only able to assimilate NH(4) (+) maximally in the presence of CO(2) and light. Inhibition of photosynthesis with(More)
This paper presents new DfT modules required to use networkson-chip as test access mechanism. We demonstrate that the proposed DfT modules can be also implemented on top of low cost networks-onchip, i.e. networks without complex services. The DfT modules, which consist of test wrappers and test pin interfaces, are designed such that both the tester and CUTs(More)
Networks-on-Chip (NoCs) can be used for test data transportation during manufacturing tests. On one hand, NoC can avoid dedicated Test Access Mechanisms (TAMs), reducing long global wires, and potentially simplifying the layout. On the other hand, (a) it is not known how much wiring is saved by reusing NoCs as TAMs, (b) the impact of reuse-based approaches(More)