基于PCIE转SATA多通道高速存储电路设计与原型验证  

Design and prototype verification of multi-channel high-speed storage circuit base on PCIE to SATA

作　　者：王琪 张梅娟[1] 邓佳伟 杨楚玮 周迁 Wang Qi;Zhang Meijuan;Deng Jiawei;Yang Chuwei;Zhou Qian(China Electronics Technology Group Corporation No.58 Research Institute,Wuxi 214035,China)

机构地区：[1]中国电子科技集团公司第五十八研究所,江苏无锡214035

出　　处：《电子技术应用》2023年第3期72-76,共5页Application of Electronic Technique

摘　　要：针对传统SATA控制器接口单一且无法充分发挥固态盘性能的问题,设计了一款基于PCIE转SATA多通道高速存储电路。充分利用PCIE总线高带宽低延时特性,并遵循AHCI协议,大幅缩短硬盘无用的寻道次数和数据查找时间,提高固态盘的读写性能,同时本设计可支持4路SATA通道,具有良好的可拓展性。设计结合PCIE和SATA协议特点,介绍了PCIE转SATA高速存储电路的系统架构,详细阐述了基于AHCI协议的数据流传输过程。最后基于FPGA原型验证对电路进行测试,电路的单盘读写速率分别为562 MB/s和527 MB/s,相比传统SATA控制器的读写性能具有较大提升,测试结果表明设计的PCIE转SATA高速存储电路读写性能优异,且具备良好的稳定性和可拓展性。Aiming at the problem that the traditional SATA controller has a single interface and cannot give full play to the performance of the SSD, a multi-channel high-speed storage circuit based on PCIE to SATA is designed. This design makes full use of the high-bandwidth and low-latency characteristics of the PCIE bus and follows the AHCI protocol, which can greatly reduce the useless seek times and data search time of the hard disk, and improve the read performance. At the same time, the design can support 4 SATA channels and has good scalability. This design combines the characteristics of PCIE and SATA protocols, introduces the system architecture of PCIE to SATA high-speed storage circuit, and elaborates the data stream transmission process based on AHCI protocol. Finally, the circuit is tested based on the FPGA prototype verification. The single-disk read and write rates of the circuit are 562MB/s and 527MB/s, respectively. Compared with the traditional SATA controller, the read and write performance is greatly improved. The test results show that the designed PCIE to SATA high-speed storage circuit has excellent read and write performance, and has good stability and scalability.

关 键 词：PCIE转SATA AHCI协议 多通道 FPGA验证 

分 类 号：TN401[电子电信—微电子学与固体电子学]