1. Introduction of USB Device by Using USB Storage

3. Storage Commands

4. Device Requests Get Descriptor Get Configuration Get String Others

8. Storage Command bit Byte 7 6 5 4 3 2 1 0 0-3 dCBWSignature 4-7 dCBWTag 8-11 dCBWDataTransferLength 12 bmCBWFlags 13 Reserved(0) bCBWLUN 14 Reserved(0) bCBWCBLength 15-30 CBWCB Command Block Wrapper bit Byte 7 6 5 4 3 2 1 0 0-3 dCBWSignature 4-7 dCBWTag 8-11 dCBWDataTransferLength 12 bmCBWFlags Command Status Wrapper

9. Storage Command bit Byte 7 6 5 4 3 2 1 0 0 Operation Code (28h) 1 dCBWTag 2 (MSB) 3 Logical Block Address 4 5 (LSB) 6 Reserved 7 Transfer Length (MSB) 8 Transfer Length (LSB) 9 Reserved 10 Reserved 11 Reserved Command Block Wrapper Command Block - Read(10) 55534243 08603284 FC000000 80000A23 00000000 000000FC 00000000 000000 > 00000008 003C3FFE 02000200 322E3020 55534220 466C6173 … < 55534253 08603284 00000000 00 <

10. Storage Command