一种新型SPI NAND控制器设计  

A New SPI NAND Controller Design

作　　者：陈亮 蔡声镇 CHEN Liang;CAI Shengzhen(College of Computing and Information Science,Fuzhou Institute of Technology,Fuzhou Fujian 350506,China;College of Mathematics and Information,Fujian Normal University,Fuzhou Fujian 350117,China)

机构地区：[1]福州理工学院计算与信息科学学院,福建福州350506 [2]福建师范大学数学与信息学院,福建福州350117

出　　处：《电子器件》2021年第3期530-534,共5页Chinese Journal of Electron Devices

基　　金：2019年福州市科技计划项目(2019-G-55)。

摘　　要：传统SPI NAND Flash存在存储容量小,传输速率低以及协议命令复杂不统一的问题,本文基于SOC设计方法,提出一种新型SPI NAND控制器架构,以FPGA作为设计载体,采用双向SPI接口技术,通过FTL算法完成逻辑地址到物理地址的转化,实现Flash颗粒数据的高效读写操作。通过搭建测试环境对本设计与传统SPI NAND Flash进行比对测试,实验结果表明:本设计在存储容量、传输速率和主控命令复杂度等方面的性能指标均有较大幅度提升,验证了架构的合理性和高效性。The traditional SPI NAND Flash has the problems of small storage capacity,low transmission rate and complex and inconsistent protocol commands.Based on the SOC design method,this paper proposes a new SPI NAND controller architecture,using FPGA as a design platform,using bidirectional SPI interface technology,through the FTL algorithm it completes the conversion of logical addresses to physical addresses,and realizes efficient data read and write operations of Flash chip.By setting up a test environment,the designed and the traditional SPI NAND Flash are compared and tested.The experimental results show that in this design the performance indicators in terms of storage capacity,transfer rate,and main control command complexity have been greatly improved,verifying the rationality and efficiency of architecture.

关 键 词：SPI控制器 FLASH控制器 NAND闪存 闪存转换器 片上系统 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]