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   源码介绍

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USB4™ Designated Vendor Specific Extended Capability (DVSEC) for Power Management

Version 1.0 USB4 DVSEC Specification
April 2021
Copyright © 2021 USB Promoter Group. All rights reserved. 4
Contents
1 Preface ..................................
1.1 Scope of Document ................................................................................................................................................... 5
1.2 Related Documents ................................................................................................................................................... 5
1.3 Terms and Abbreviations ....................................................................................................................................... 5
1.4 Documentation Conventions .................................................................................................................................. 5
1.4.1 Capitalization .............................................................................................................................................. 5
1.4.2 Italic Text ...................................................................................................................................................... 5
1.4.3 Numbers and Number Bases ................................................................................................................... 5
1.4.4 Bit, Byte, DW, and Symbol Conventions .............................................................................................. 5
1.4.5 Word Usage .................................................................................................................................................. 5
1.4.6 Reserved Values and Fields..................................................................................................................... 6
2 Introduction ...............7
3 USB4 DVSEC Header ........ 8
4 NHI-Specific Attributes .0
5 PCIe-Specific Attributes 1
6 USB-Specific Attributes .................................................................................................................................................... 13
Figures
2Example Topology of a USB4 Host Controller with Multiple Host Interfaces 7
3USB4 DVSEC Header ........ 8
4NHI-Specific Attributes .0
5PCIe-Specific Attributes 1
Figure 6-1. USB-Specific Attributes .................................................................................................................................... 13
Tables
3USB4 DVSEC Header Fields ...... 8
4NHI-Specific Attribute Fields .0
5PCIe-Specific Attribute Fields 1
Table 6-1. USB-Specific Attribute Fields ........................................................................................................................... 13