Format of Twelve-Byte SCSI Command Descriptor Block (CDB):
Offset	Size	Description	)
 00h	BYTE	operation code (see #03239)
 01h	BYTE	logical unit number (bits 7-5), SCSI-1/SCSI-2
		reserved in SCSI-3
 02h	DWORD	logical block address (low word)
 06h	DWORD	transfer length
 0Ah	BYTE	reserved
 0Bh	BYTE	control byte
SeeAlso: #03236,#03237