基于AHB总线的SD/SDHC/MMC控制器设计

Design of AHB-Based SD/SDHC/MMC Controller

摘要: 在分析了SD卡传输协议的基础上, 给出了一种SD卡控制器设计方案.其特点是采用了高速的AHB接口和特殊的DMA传输方式, 因此可应用于高速实时数据流的处理.该设计已通过FPGA验证并达到了设计目标.

Abstract: Based on analyzing SD (Secure Digital Card) card transport protocols, a design scheme of SD card controller is proposed in this paper.The designed controller can be used in real time data stream processing through the implement of an AHB (Advanced High-performance Bus) interface and a special DMA (Direct Memory Access) transfer mode.The controller has been FPGA (Field Programable Gate Array) -verified and satisfied the design goal completely.