| Citation: |
Guan Xuguang, Yang Yintang, Zhu Zhangming, Zhou Duan. A self-adaptive full asynchronous bi-directional transmission channel for network-on-chips[J]. Journal of Semiconductors, 2010, 31(8): 085008. doi: 10.1088/1674-4926/31/8/085008
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Guan X G, Yang Y T, Zhu Z M, Zhou D. A self-adaptive full asynchronous bi-directional transmission channel for network-on-chips[J]. J. Semicond., 2010, 31(8): 085008. doi: 10.1088/1674-4926/31/8/085008.
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A self-adaptive full asynchronous bi-directional transmission channel for network-on-chips
DOI: 10.1088/1674-4926/31/8/085008
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Abstract
To improve two shortcomings of conventional network-on-chips, i.e. low utilization rate in channels between routers and excessive interconnection lines, this paper proposes a full asynchronous self-adaptive bi-directional transmission channel. It can utilize interconnection lines and register resources with high efficiency, and dynamically detect the data transmission state between routers through a direction regulator, which controls the sequencer to automatically adjust the transmission direction of the bi-directional channel, so as to provide a flexible data transmission environment. Null convention logic units are used to make the circuit quasi-delay insensitive and highly robust. The proposed bi-directional transmission channel is implemented based on SMIC 0.18 μ m standard CMOS technology. Post-layout simulation results demonstrate that this self-adaptive bi-directional channel has better performance on throughput, transmission flexibility and channel bandwidth utilization compared to a conventional single direction channel. Moreover, the proposed channel can save interconnection lines up to 30% and can provide twice the bandwidth resources of a single direction transmission channel. The proposed channel can apply to an on-chip network which has limited resources of registers and interconnection lines.-
Keywords:
- network-on-chip
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References
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Proportional views
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