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一种基于ASIC的高速异步FIFO设计

更新时间:2020-06-01 01:35:22 大小:535K 上传用户:zhiyao6查看TA发布的资源 标签:asicFIFO 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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分析了异步FIFO的结构和关键技术,在与利用格雷码作为异步FIFO指针编码对比的基础上,提出了一种采用移位码编码方式的FIFO,不仅减小了亚稳态出现的概率,也简化了电路结构,降低了电路面积和功耗,在此基础上也缩短了电路的关键路径,工作频率明显提升。根据仿真和综合结果显示,本文设计的FIFO工作性能稳定可靠。

This paper analysis the structure and key technology of asynchronous FIFO. Compared with the method of using Gray code as the pointer of asynchronous FIFO, the paper presents a method that shift code is instead of gray code. This new design has the following advantages. Firstly, the probability of occurrence in metastability is reduced. Secondly, the circuit structure, area and the pow- er consumption are more simple, small and lower. Also, the key path of the circuit is shortened. The result is the circuit's working frequency is improved significantly. The results of simulation and synthesis shows that this FIFO is stable and reliable.

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一种基于ASIC的高速异步FIFO设计.pdf 535K

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