一种MRAM仿真系统的设计实现

发布时间：2018-06-18 02:38

本文选题：磁阻式随机访问存储器 + 非易失性　；参考：《计算机研究与发展》2015年S2期

【摘要】：计算机科学技术日新月异的发展,对存储器的集成度、读写速度、可靠性等方面提出了更高的要求.在这种形势下,一些传统存储器的缺陷逐步暴露出来,需要新一代存储器适应技术的发展和要求.与传统的存储器相比,磁阻式随机访问存储器(magnetic random access memory,MRAM)具有更好的性能,它同时具备静态随机访问存储器(static random access memory,SRAM)的高速读写性能、动态随机访问存储器(dynamic random access memory,DRAM)的高集成度与Flash存储器的非易失性等优点.为了研究MRAM用作主存时的各项性能,进一步探究MRAM作为DRAM主存替代品的可能性,根据MRAM的原理以及特点,设计并实现了一个MRAM仿真系统,由trace发生器、MRAM控制器和MRAM存储体3部分组成.MRAM仿真系统接收来自处理器(CPU)对主存的读写请求,并根据设计的地址映射算法,对请求进行调度,完成对MRAM存储器的读写请求.仿真结果表明,用MRAM做主存能够发挥出MRAM的优势,获得良好的请求响应时间、请求带宽等性能.
[Abstract]:With the rapid development of computer science and technology, higher requirements for memory integration, reading and writing speed, reliability and so on are put forward. In this situation, the defects of some traditional memory are exposed step by step, which needs the new generation memory to adapt to the development and requirement of technology. Compared with the traditional memory, the magnetoresistive random access memory (random access memory MRAM) has better performance, and it also has the high speed read and write performance of static random access memory (RRAM). Dynamic random access memory (DRAM) has the advantages of high integration and non-volatile memory. In order to study the performance of MRAM as main memory and explore the possibility of MRAM as a substitute for DRAM, a MRAM simulation system is designed and implemented according to the principle and characteristics of MRAM. MRAM emulation system consists of three parts: trace generator controller and MRAM memory. MRAM emulation system receives the read-write request from processor. According to the address mapping algorithm designed, the request is scheduled to complete the read-write request of MRAM memory. The simulation results show that using MRAM as host memory can give full play to the advantages of MRAM and obtain good performance such as request response time and request bandwidth.
【作者单位】：武汉光电国家实验室(华中科技大学);信息存储教育部重点实验室(华中科技大学);
【基金】：国家自然科学基金项目(61300047) 湖北省自然科学基金项目(2015CFB315)
【分类号】：TP333

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