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Embedded systems are increasingly based on multi-core platforms to accommodate a growing number of applications, some of which have real-time requirements. Resources, such as off-chip DRAM, are typically shared between the applications using memory interconnects with different arbitration polices to cater to diverse bandwidth and latency requirements. However, traditional centralized interconnects...
Predictable arbitration policies, such as Time Division Multiplexing (TDM) and Round-Robin (RR), are used to provide firm real-time guarantees to clients sharing a single memory resource (DRAM) between the multiple memory clients in multi-core real-time systems. Traditional centralized implementations of predictable arbitration policies in a shared memory bus or interconnect are not scalable in terms...
Within Network-on-Chip architectures the sharing of external memory by many CPUs provides a key challenge within the design in order that memory latencies do not dominate overall performance. Within this paper, we propose and evaluate a stream based prefetch unit within a NoC architecture that utilises a separate shared memory tree to provide access to external memory from each CPU tile. The paper...
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