Universal Serial Bus 3.0 Specification.pdf

Acknowledgement of USB 3.0 Technical Contribution 1 Introduction 1.1 Motivation.................................................................................................................1-1 1.2 Objective of the Specification...................................................................................1-2 1.3 Scope of the Document............................................................................................1-2 1.4 USB Product Compliance.........................................................................................1-2 1.5 Document Organization............................................................................................1-3 1.6 Design Goals............................................................................................................1-3 1.7 Related Documents..................................................................................................1-3 2 Terms and Abbreviations 3 SuperSpeed USB Architectural Overview 3.1 USB 3.0 Overview....................................................................................................3-1 3.1.1 SuperSpeed Architecture Overview........................................................3-2 3.1.1.1 Physical Layer.................................................................3-2 3.1.1.2 Link Layer........................................................................3-3 3.1.1.3 Protocol Layer.................................................................3-3 3.1.1.4 Hubs................................................................................3-4 3.1.1.5 Power Management........................................................3-5 3.2 USB 3.0 System.......................................................................................................3-5 3.2.1 Comparing SuperSpeed USB to USB 2.0 ..............................................3-5 3.2.2 System Level Topology ..........................................................................3-7 3.2.