UltraDMA控制器的FPGA实现  

The Implementation of UltraDMA Controller Based on FPGA

作　　者：赵志勇[1] 吕玉祥[1] 赵晓龙[2] 马维青[2] 

机构地区：[1]太原理工大学物理与光电工程学院,太原030024 [2]山西省电力公司阳泉供电分公司,山西阳泉045000

出　　处：《电子器件》2015年第6期1332-1335,共4页Chinese Journal of Electron Devices

摘　　要：高级技术附加装置ATA(Advanced Technology Attachment)是一种稳定高性能的数据传输方式,为了使ATA设备能够满足低成本,嵌入式和个性化的数据存储需求,摆脱在访问和控制方式上对CPU的依赖。通过研究ATA协议中的Ultra DMA(Ultra Direct Memory Access,高速直接内存存取)数据传输过程,分析提取主机端工作原理与工作过程,最终在ISE开发环境下利用VHDL(Vhsic Hardware Description Language,超高速集成电路硬件描述语言)编程语言,在FPGA上设计并实现了无CPU干预的Ultra DMA控制器。经过仿真验证,基于FPGA的ATA控制器能够实现对硬盘数据的高速读写,实现低成本、高速以及安全的存储需要。ATA（Advanced Technology Attachment）is a kind of stable and high performance data transmission mode.The traditional controller can not meet the need of the of data storage for low cost and embeddability and personality.It also depend on the CPU for function of access to data and control mode. The Ultra DMA data transmission processof ATA protocol was studied and the work principle and process of host controller was extracted. VHDL was used toprogram in ISE development environment. A not CPU-controlled Ultra DMA read/write controller is realized basedon FPGA. Through simulation,the Ultra DMA controller can read/write data on hard-disk with high-speed. The sys-tem is also low cost,high speed and secure.

关 键 词：数据传输 UltraDMA VHDL ATA协议 读写控制器 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]