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. |
+=============================================================================+