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Testing the System on a Chip 测试单晶片系统Much has been written about the concept of a system on a chip, the 关于单晶片系统的概念已经详述了很多，单硅芯片上的逻辑和模拟集成功能不断增长 ever-increasing integration of logic and analog functions on one silicon die or chip. This paradigm is about to change.这种形式即将改变 The results of work by universities, national labs, and companies such as Motorola, Inc., are paving the way for a true system on a chip, or SOC.众多大学、国家实验室和公司像Motorola、Inc的工作成果都是为了完成一个真正的单晶片系统做铺垫 These new SOCs will not only analyze data, but will measure, analyze, and react to their environment.这些单晶片系统不仅要分析数据，还要测量、分析和对环境做出反应The integration of power and analog elements with a CMOS microcontroller unit (MCU) has been possible for several years. 这种集成能源和带有CMOS的程序控制器的模拟元素多年前就成为可能 Products have been introduced such as an integrated 68HC05 motor controller with integral power devices in an H-bridge configuration (1990). 很多产品已经被引入使用、像1990年生产的的配置在一个定速的集成68HC05马达控制器与整体电力设备 In 1993, a product called a System Chip MCU was introduced that provided a Society of Automotive Engineers J1850 interface, including the physical layer. 在1993年，一款单晶片系统程序控制器的产品投入使用，为整个社会的自动化工程师提供了J1850接口。This chip could withstand 40 V, based on the combination of power and analog capability with the MCU.这款芯片是基于电源和有程序控制器控制模拟容量的结合，所以它能够承受40伏的电压 However, the system input was not included in previous monolithic designs.然而，系统输入并不在先前的单块集成电路的设计中What is the most recent development that promises to truly enable a system on a chip? 那么，什么是能保证真正实现一块芯片上集成系统的必威体育精装版开发成果It is the ability to combine CMOS and MEMS (microelectromechanical systems) structures into one process flow. 它是这种能将CMOS和MEMS结构结合到一个工艺程序流中去。Photo 1 illustrates a 68HC05 microcontroller with a 100 kPa pressure sensor integrated onto a single silicon die. A likely application is a side air bag sensor. 图1说明了一个款集成100千帕压力传感器一块单硅模板的68HC05微控制器A pressure sensor, inside the door panel of a car, could detect the change in pressure when the panel crumples under an impact. 一个压力传感器，设置在一个汽车门上的一面板上