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从上个世纪80年代初开始,飞利浦就开发了两线、低速到中速通信总线集成互连(I~2C),如今它已成为板上通信事实上的标准；而且,当你利用驱动程序对它进行支持时,对板对板的通信也是如此。然而,当通信速率增加,板卡间甚至机柜间布线通信变得司空见惯时,I~2C就需要在速度和驱动能力方面有一个大幅度的提升。为了带给用户最新的技术并吸引新的用户群,飞利浦又推出了基于Fm+(高速模式Plus,fast-mode-plus)规范的系列设备。Fm+减小了总线容差和时钟要求,而且有助于实现相对于老版本的400kHz的1MHz的高速度,以及高达4000pF的高于正常10倍的总线驱动能力。
Since the early 1980s, Philips has developed two-wire, low-speed to medium-speed communication bus integrated interconnects (I ~ 2C), and today it has become the de facto standard for on-board communications; and when you take advantage of drivers When it is supported, so is board-to-board communication. However, as communication rates increase, cabling between cabinets and even cabinets become commonplace, I-2C requires a dramatic increase in speed and driveability. In order to bring users the latest technology and attract new user groups, Philips has introduced a series of devices based on the Fm + (fast mode Plus, fast-mode-plus) specification. Fm + reduces bus tolerances and clocking requirements and helps achieve 1MHz high speed up to 400kHz relative to the older version and up to 10 times higher bus drive capability up to 4000pF.