Table 12

+=============-===============================================================+
|  Code (y)   |  Description                                                  |
|-------------+---------------------------------------------------------------|
|     02h     |  Reserved (see note)                                          |
|     00h     |  MODIFY DATA POINTER                                          |
|     01h     |  SYNCHRONOUS DATA TRANSFER REQUEST                            |
|     03h     |  WIDE DATA TRANSFER REQUEST                                   |
|  04h - 7Fh  |  Reserved                                                     |
|  80h - FFh  |  Vendor-specific                                              |
|-----------------------------------------------------------------------------|
|   NOTE - Extended message code 02h was used for the EXTENDED IDENTIFY       |
|   message in SCSI-1.                                                        |
+=============================================================================+