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当初,Intel为自己的82810芯片组创造了Hub Link技术来连接南北桥芯片,81x芯片组成为最能发挥Ultra DMA66传输性能的芯片组。然而,由于Intel的授权费用高昂,很多芯片组厂商为了降低成本都开始开发自己的连接技术。例如Via公司开发了V-Link(32位,66MHz,266MB/s),SiS公司开发了DPI(Dedicated Pci to Ide bus,266MB/s)和Multi-threaded IO Link(1.2GB/s),而Motorola公司则提出了RapidI/O。本文要讲的是AMD公司最新开发的一种输入输出总线结构——HyperTransport。该技术设计的目的是解决32位和64位处理器系统中的输入输出瓶颈问题。该技术可以提供比PCI、PCI-X和AGP等输入输出总线体系结构高一个数量级的总线数据处理量,其传输速度事与诸如Rapid I/O和InfiniBand等输入输出总线结构相媲美。
Originally, Intel created the Hub Link technology for its 82810 chipset to connect North and South bridge chips, making the 81x chipset the chipset capable of delivering Ultra DMA66 performance. However, due to the high cost of Intel licensing, many chipset vendors have begun to develop their own connection technology to reduce costs. For example, Via developed V-Link (32-bit, 66MHz, 266MB / s), SiS developed DPI (266MB / s) and Multi-threaded IO Link (1.2GB / s) The company proposed RapidI / O. This article is about AMD’s latest development of an input and output bus architecture - HyperTransport. The technology was designed to address the input and output bottlenecks in 32-bit and 64-bit processor systems. The technology can provide an order of magnitude more bus data throughput than I / O bus architectures such as PCI, PCI-X and AGP, with transfer speeds comparable to I / O bus structures such as Rapid I / O and InfiniBand.