星载同步NANDFlash的研究与应用  

Research and Application of Synchronous Satellite-borne NANDFlash

作　　者：张俊杰 沈霞宏 徐瑞瑞 王盛 王冠雄 ZHANG Junjie;SHEN Xiahong;XU Ruirui;WANG Sheng;WANG Guanxiong(Shanghai Aerospace Electronic Technology Institute,Shanghai 201109,China)

机构地区：[1]上海航天电子技术研究所,上海201109

出　　处：《无线电工程》2019年第1期86-90,共5页Radio Engineering

基　　金：国家部委基金资助项目

摘　　要：针对新型星载存储系统的超高速读写需求,基于XILINX FPGA平台对Micron公司的同步NANDFlash存储芯片的应用进行了研究,分析了该NANDFlash芯片硬件设计的信号完整性,对NANDFlash操作时序进行了分析,并设计了一种支持ONFI2. 2标准源同步模式的NANDFlash控制器,通过Modelsim对所设计的控制器进行了仿真并在存储板上进行了验证。仿真与测试结果表明,设计的控制器工作稳定,其单芯片读写速率可达1 598/1 340 Mbps,能够满足新一代星载高速存储系统的需求。Aiming at the need for ultra-high speed read and write of new-type satellite-borne storage systems,this paper studies the application of Micron’s synchronous NANDFlash memory chip based on XILINX FPGA platform,analyzes the signal integrity of the NANDFlash chip hardware design,and designs a NANDFlash controller that supports the ONFI2.2standard source-synchronous mode.The designed controller is simulated by Modelsim and verified on the memory board.Simulation and test results show that the controller designed in this paper is stable and its single-chip read/write speed can reach1598/1340Mbps,which can meet the needs of new satellite-borne high-speed storage system.

关 键 词：NANDFLASH ONFI 阻抗匹配 固态存储器 源同步 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]