摘要
USB接口有多种版本,当我们把不同版本的USB设备插入USB端口时,系统均能够接纳它们,并允许它们以不同的模式进行数据传输。在兼容并蓄的表象背后,其内部究竟发生了什么?该文解剖了USB设备兼容机制,并介绍了USB设备工作模式的识别方法。
Here are many versions of USB port,when different versions of USB devices are connected to a USB port,all of them can be accepted by the system and allowed to transmit data in different modes.What has actually happened inside the port beneath this phenome non of compatibility? This article aims to analyze the compatible mechanism of USB devices and introduce some ways to recognize their working modes.
出处
《电脑知识与技术》
2011年第11X期8293-8294,共2页
Computer Knowledge and Technology
关键词
USB
主控制器
兼容性
USB
master controller
compatibility
