| 基于加权Gray码及实时状态检测的异步FIFO设计 |
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| 引用本文： | 刘祥远,陈书明. 基于加权Gray码及实时状态检测的异步FIFO设计[J]. 计算机工程与科学, 2007, 29(7): 91-95 |
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| 作者姓名： | 刘祥远 陈书明 |
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| 作者单位： | 国防科技大学计算机学院,湖南,长沙,410073;国防科技大学计算机学院,湖南,长沙,410073 |
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| 基金项目： | 国家自然科学基金 , 高等学校博士学科点专项科研项目 |
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| 摘 要： | 本文提出了一种新颖的异步FIFO设计，它采用加权Gray码进行指针编码，采用实时的全局状态检测器来控制写／读，是一种高性能的异步FIFO。模拟结果表明，在FIFO深度为4～16的情况下，该设计与已有的FIFO设计相比在性能以及面积开销等方面都获得了明显的改善。该异步FIFO在多核SoC互连设计中具有广泛的应用前景。
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| 关 键 词： | 异步FIFO 同步器 高性能Gray码 |
| 文章编号： | 1007-130X（2007）07-0091-05 |
| 修稿时间： | 2006-09-252006-12-28 |
An Asynchronous FIFO Design Based on Weighted Gray Coding and Real-Time State Detection |
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| LIU Xiang-yuan,CHEN Shu-ming. An Asynchronous FIFO Design Based on Weighted Gray Coding and Real-Time State Detection[J]. Computer Engineering & Science, 2007, 29(7): 91-95 |
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| Authors: | LIU Xiang-yuan CHEN Shu-ming |
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| Affiliation: | School of Computer Science,National University of Defense Tedmology,Changsha 410073,China |
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| Abstract: | A novel asynchronous FIFO design is presented in this paper. It employs a weighted gray code as the write/ read pointer code,and controls write/read operations using a real-time global state detector. It is a high-performance asynchronous FIFO design. Simulation results show that the performance and area cost are both considerably improved compared with other available FIFOs under the depth range of 4-16. The asynchronous FIFO can be widely used in the interconnect design of multi-core SoC. |
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| Keywords: | asynchronous FIFO synchronizer high performance Gray code |
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