An Asynchronous Adaptive Priority Round‐Robin Arbiter Based on Four‐Phase Dual‐rail Protocol. Issue 1 (1st January 2015)

• Record Type: Journal Article
• Authors: Yang, Yintang; Wu, Ruizhen; Zhang, Li; Zhou, Duan
• Is Part Of: Chinese journal of electronics. Volume 24:Issue 1(2015)
• Page Start: 1
• Page End: 7
• Publication Date: 2015-01-01
• Subjects: arbiter -- asynchronous circuit -- fourphase dual‐rail protocol -- system‐on‐chip (SoC); asynchronous circuits -- logic design -- protocols -- system‐on‐chip; asynchronous adaptive priority round‐robin arbiter -- four‐phase dual‐rail protocol -- asynchronous circuits -- bandwidth allocation -- arbitration fairness -- synchronous SoC -- nonidling model -- nonpreemptive model -- dynamic power -- static power -- fixed priority -- lottery arbiters -- system integration -- communication traffics; Electronics -- Periodicals; Electronics -- China -- Periodicals; Electronics; China; Periodicals; 621.38105
• DOI: 10.1049/cje.2015.01.001
• Languages: English
• ISSNs: 1022-4653

Abstract

Abstract : An asynchronous Adaptive priority roundrobin arbiter (APRA) based on four‐phasedual‐rail protocol is proposed. Combining the advantages of synchronous andasynchronous circuits, it provides the required bandwidth allocation on basis ofarbitration fairness and works in synchronous SoC. In the Nonidling andnonpreemptive (NINP) model, simulations and verifications are made. The resultsshow that the speed of the proposed arbiter is improved by 18%–50.4% and thedynamic and static power is reduced by 8.4%–46.2% and 81.8%–90.9% respectivelycompared with the commonly‐used Fixed priority (FP), Round‐Robin (RR) andLottery arbiters. The proposed arbiter is better in output bandwidth allocationand it also has advantages in speed and power. Furthermore, it is easy inreconfiguration, strong in practicability and low in complexity of systemintegration and suits various extreme communication traffics.