On-Chip Communication Architectures

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that the CAT-based architecture provides better performance than the conventional

bus architecture. The extent of the performance improvement varies, depending

on the workload imposed by the trace. The benefi t of an adaptive communication

architecture like the CAT-based architecture is more pronounced for moderate to

high workloads (e.g., T-3 to T-9 ). For low workloads, both the conventional and

CAT-based architectures are capable of meeting most of the deadlines, whereas for

very high workloads, neither architecture can meet the deadlines. Consequently,

for very low or very high workloads, the gains for the CAT-based architecture are