With USB 2.0, the USB standard for PC peripheral connectivity delivers up to 40 times the speed of USB 1.1 -- plus many other extensions, clarifications, and reliability improvements. Now's the time for professional engineers working with PC hardware and peripherals to master USB 2.0 -- and this is the book. The latest in MindShare's world-class PC System Architecture Series, Universal Serial Bus System Architecture, Second Edition teaches engineers everything they need to know to deliver reliable, cost-effective USB 2.0 hardware and software. It covers every key aspect of USB 2.0 product design, including the USB 2.0 protocol, signaling environment, electrical specifications, hardware/software interaction, and more. It has been thoroughly updated to reflect all key changes since USB 1.0. It also contains detailed new coverage of USB 2.0 device classes, legacy support, and Microsoft's implementation of USB host software and class drivers. For all peripheral developers, computer hardware and software design engineers, and other programmers working with Intel-standard PC environments.