USB Mass Storage Class CBI Transport Specification Revision 1.0
1998/12/29 4
Table of Contents
1. Introduction............................................................................................................................. 6
1.1 Scope................................................................................................................................. 6
1.2 Target Audience ................................................................................................................ 7
1.3 Purpose ............................................................................................................................. 7
1.4 Terms and Abbreviations................................................................................................... 7
1.4.1 Terms from the USB Specification............................................................................. 7
1.4.2 Terms Adapted from the SPC-2 Specification ........................................................... 8
1.4.3 Terms Specific to this Specification ........................................................................... 8
1.4.4 Key Cross References to USB Core Specifications................................................... 9
1.5 Bus Trace Notation Conventions..................................................................................... 10
2. Functional Characteristics................................................................................................... 11
2.1 Port Reset Protocol..........................................................................................................11
2.2 Command Block Reset Protocol ..................................................................................... 11
2.3 Non-Data Command Protocol ......................................................................................... 12
2.3.1 Command Transport for Non-Data Commands....................................................... 12
2.3.2 Status Transport for Non-Data Commands ............................................................. 13
2.4 Data In Command Protocol ............................................................................................. 15
2.4.1 Command Transport for Data In Commands........................................................... 15
2.4.2 Data In Transport ..................................................................................................... 15
2.4.3 Status Transport for Data In Commands ................................................................. 16
2.5 Data Out Command Protocol .......................................................................................... 17
2.5.1 Command Transport for Data Out Commands........................................................ 17
2.5.2 Data Out Transport................................................................................................... 17
2.5.3 Status Transport for Data Out Commands .............................................................. 17
2.6 Unidirectional Data Transport Requirement .................................................................... 17
3. Standard Descriptors ........................................................................................................... 18
3.1 Device Descriptor ............................................................................................................18
3.2 Configuration Descriptor.................................................................................................. 19
3.3 Interface Descriptors ....................................................................................................... 20
3.4 Endpoint Descriptors ....................................................................................................... 21
3.4.1 Bulk In Endpoint ....................................................................................................... 21
3.4.2 Bulk Out Endpoint .................................................................................................... 22
3.4.3 Interrupt Endpoint..................................................................................................... 22
4. Requests................................................................................................................................ 25
4.1 Class-Specific Requests.................................................................................................. 25
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2009-10-08
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夕阳醉了2014-03-18挺不错的，不过英文看起来比较费力
逐梦，无惧！2014-03-21不错，大容量存储，最近就用的是这个，还有HID的也要用。。。usb协议啊
