SD存储卡接口SPI模式的FPGA实现  

Implementation of SPI Mode of SD Memory Card Interface in FPGA

作　　者：何丹[1] 李树国[1] 

机构地区：[1]清华大学微电子所,北京100084

出　　处：《微电子学》2014年第2期206-209,213,共5页Microelectronics

基　　金：国家863计划资助项目(2012AA012402);国家自然科学基金资助项目(61073173)

摘　　要：SD存储卡接口在嵌入式SoC芯片设计中有着广泛应用。完成了符合SD2.0物理层规范的SD存储卡接口SPI模式下IP核的设计与实现。该设计支持SD2.0物理层规范的基本命令,能够自动解析主机发送的命令并响应,可存取SRAM接口数据。在SPI读卡器验证平台下,对该设计进行了FPGA原型验证。测试表明,该设计能够进行数据读写操作,验证了该设计的正确性和实用性。Secure digital（SD）memory card interface is widely used in embedded SoC.According to SD2.0 physical layer specification,an IP core of SD memory card interface in SPI mode was designed and implemented, which could support basic commands in SD2.0physical layer specification,decode and respond to host commands automatically,as well as access data with SRAM interface.Based on SPI reader testing platform,the FPGA prototype was verified.Test results showed that data access was carried out correctly on the prototype circuit, which validated the design.

关 键 词：安全数码存储卡 片上系统 串行外设接口 现场可编程门阵列 

分 类 号：TP33[自动化与计算机技术—计算机系统结构]