June 24, 2009 UASP Revision 1.0
USB Attached SCSI Protocol (UASP) v
Table of Contents
Page
Document Status .................................................................................................................................................. ii
Table of Contents .................................................................................................................................................. v
List of Tables ........................................................................................................................................................ vi
List of Figures ......................................................................................................................................................vii
1 Introduction ........................................................................................................................................................ 1
1.1 Purpose .................................................................................................................................................... 1
1.2 Scope ....................................................................................................................................................... 1
1.3 Related Documents .................................................................................................................................. 1
2 Management Overview ...................................................................................................................................... 2
3 Functional Characteristics .................................................................................................................................. 3
4 Standard Descriptors ......................................................................................................................................... 4
5 [USB3] Operation ............................................................................................................................................... 5
5.1 Overview ................................................................................................................................................... 5
5.2 Figure Notation ......................................................................................................................................... 6
5.3 High-speed UASP .................................................................................................................................... 7
5.3.1 Overview ......................................................................................................................................... 7
5.3.2 Non-data transfer ............................................................................................................................ 7
5.3.3 Data-in transfer ................................................................................................................................ 9
5.3.4 Data-out transfer ............................................................................................................................ 11
5.3.5 Bi-directional data transfer ............................................................................................................. 13
5.4 SuperSpeed UASP ................................................................................................................................. 17
5.4.1 Overview ....................................................................................................................................... 17
5.4.2 Non-data transfer .......................................................................................................................... 17
5.4.3 Data-in transfer .............................................................................................................................. 19
5.4.4 Data-out transfer ............................................................................................................................ 21
5.4.5 Bi-directional data transfer ............................................................................................................. 23
Annex A (Informative) Backward Compatibility .................................................................................................... 27
A.1 Overview ................................................................................................................................................ 27
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