Analysis of the Compatible Mechanism of USB Ports
Liu Chao-xin · Computer Knowledge and Technology · 2011
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.