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  • 标题:Implementation of Multilayer AHB Busmatrix for ARM
  • 本地全文:下载
  • 作者:E. Raja ; K.V. Ramana
  • 期刊名称:International Journal of Soft Computing & Engineering
  • 电子版ISSN:2231-2307
  • 出版年度:2011
  • 卷号:1
  • 期号:5
  • 页码:27-30
  • 出版社:International Journal of Soft Computing & Engineering
  • 摘要:The multi-layer AHB busmatrix (ML-AHB busmatrix) proposed by ARM is a highly efficient on chip bus that allows parallel access paths between multiple masters and slaves in a system. However, the ML-AHB busmatrix of ARM offers only transfer-based fixed-priority and round-robin arbitration schemes. In this paper, we present one way to improve the arbiter implementation of the ML-AHB busmatrix. The proposed arbiter, which is Self-motivated (SM), selects one of the nine possible arbitration schemes based upon the priority-level and the desired transfer length from the masters so that arbitration leads to the maximum performance. Our SM arbitration scheme has the following advantages: 1) It can adjust the processed data unit; 2) it changes the priority policies during runtime; and 3) it is easy to tune the arbitration scheme according to the characteristics of the target application.
  • 关键词:ML-AHB busmatrix; Self-motivated Arbiter;fixed-priority arbitration; round-robin arbitration.
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