基于FIFO的循环移位寄存器实现方法  

Implementation of circulating shift-register based on FIFO

作　　者：欧春湘[1] 杨嘉伟[2] 任晓松[1] 

机构地区：[1]中国航天科工信息技术研究院,北京100071 [2]中国航天科工防御技术研究院,北京100854

出　　处：《现代电子技术》2014年第19期60-62,共3页Modern Electronics Technique

基　　金：国家高技术研究发展计划(2011AA120504)

摘　　要：为了完成高频率下相关器的时分复用,相关器的低频输入数据须通过循环移位寄存器移位。提出了在FPGA中采用多级串联FIFO核实现循环移位寄存器。对上述方案进行FPGA仿真实验,经实测表明基于FIFO的循环移位寄存器工作稳定,能够实时地提供准确数据给时分复用相关器模块。Since the low frequency input data of the correlator should be shifted by circulating shift-register to accomplish time division multiplexing of the correlator in high frequency,an implementation method of circulating shift-register which adopts series FIFO (First input first output) core in FPGA is proposed. FPGA simulation of the scheme mentioned above was performed. The results shows that the shift-register based on FIFO works stable and can provide accurate data to the time divi-sion multiplexing correlator.

关 键 词：FIFO 移位寄存器 FPGA 相关器 

分 类 号：TP332.11[自动化与计算机技术—计算机系统结构]