The paper proposes a novel transceiver in physical layer for high-speed serial data link based upon Universal Serial Bus (USB) 2.0, comprising transmitter and receiver. In the design, transmitter contains pre-and-main...The paper proposes a novel transceiver in physical layer for high-speed serial data link based upon Universal Serial Bus (USB) 2.0, comprising transmitter and receiver. In the design, transmitter contains pre-and-main driver to satisfy slew rate of output data, receiver includes optimized topology to improve preci- sion of received data. The circuit simulation is based on Cadence’s spectre software and Taiwan Semiconduc- tor Manufacture Corporation’s library of 0.25μm mixed-signal Complementary Metal-Oxide Semiconductor (CMOS) model. The front and post-simulation results reveal that the transceiver designed can transmit and re- ceive high-speed data in 480Mbps, which is in agreement with USB2.0 specification. The chip of physi- cal-layer transceiver has been designed and implemented with 0.25μm standard CMOS technology.展开更多
开发USB(Universal Serial Bus)设备驱动是一项比较繁琐的工作。Linux中的USB核心子系统提供了大量的API以及相关的支持机制,保证了USB设备的即插即用,简化了驱动的编写。结合具体开发实例,介绍了USB的相关概念,分析Linux中USB核心子系...开发USB(Universal Serial Bus)设备驱动是一项比较繁琐的工作。Linux中的USB核心子系统提供了大量的API以及相关的支持机制,保证了USB设备的即插即用,简化了驱动的编写。结合具体开发实例,介绍了USB的相关概念,分析Linux中USB核心子系统的框架构成以及重要的数据结构,剖析Linux内核对USB规范的支持,描述了驱动开发的一般方法和技巧。展开更多
通用串行总线(universal serial bus,USB)接口的出现为用户带来了便利,但也正由于它的便利性、使用广泛性使得其成为攻击者的攻击目标之一.常见的USB攻击主要有USB摆渡攻击和USB HID攻击.从USB攻击技术出发,分析了几种常见的USB攻击技...通用串行总线(universal serial bus,USB)接口的出现为用户带来了便利,但也正由于它的便利性、使用广泛性使得其成为攻击者的攻击目标之一.常见的USB攻击主要有USB摆渡攻击和USB HID攻击.从USB攻击技术出发,分析了几种常见的USB攻击技术的原理,着重总结整理了国内外针对USB攻击的检测防护技术,并分析了各防护技术的优劣,同时,结合各防护技术提出了应对USB攻击的防护策略及未来的发展方向.展开更多
文摘The paper proposes a novel transceiver in physical layer for high-speed serial data link based upon Universal Serial Bus (USB) 2.0, comprising transmitter and receiver. In the design, transmitter contains pre-and-main driver to satisfy slew rate of output data, receiver includes optimized topology to improve preci- sion of received data. The circuit simulation is based on Cadence’s spectre software and Taiwan Semiconduc- tor Manufacture Corporation’s library of 0.25μm mixed-signal Complementary Metal-Oxide Semiconductor (CMOS) model. The front and post-simulation results reveal that the transceiver designed can transmit and re- ceive high-speed data in 480Mbps, which is in agreement with USB2.0 specification. The chip of physi- cal-layer transceiver has been designed and implemented with 0.25μm standard CMOS technology.
文摘开发USB(Universal Serial Bus)设备驱动是一项比较繁琐的工作。Linux中的USB核心子系统提供了大量的API以及相关的支持机制,保证了USB设备的即插即用,简化了驱动的编写。结合具体开发实例,介绍了USB的相关概念,分析Linux中USB核心子系统的框架构成以及重要的数据结构,剖析Linux内核对USB规范的支持,描述了驱动开发的一般方法和技巧。
文摘通用串行总线(universal serial bus,USB)接口的出现为用户带来了便利,但也正由于它的便利性、使用广泛性使得其成为攻击者的攻击目标之一.常见的USB攻击主要有USB摆渡攻击和USB HID攻击.从USB攻击技术出发,分析了几种常见的USB攻击技术的原理,着重总结整理了国内外针对USB攻击的检测防护技术,并分析了各防护技术的优劣,同时,结合各防护技术提出了应对USB攻击的防护策略及未来的发展方向.
