Table 243

+=====-========-========-========-========-========-========-========-========+
|  Bit|   7    |   6    |   5    |   4    |   3    |   2    |   1    |   0    |
|Byte |        |        |        |        |        |        |        |        |
|=====+=======================================================================|
| 0   |                           Operation code (48h)                        |
|-----+-----------------------------------------------------------------------|
| 1   | Logical unit number      |                  Reserved                  |
|-----+-----------------------------------------------------------------------|
| 2   |                           Reserved                                    |
|-----+-----------------------------------------------------------------------|
| 3   |                           Reserved                                    |
|-----+-----------------------------------------------------------------------|
| 4   |                           Starting track                              |
|-----+-----------------------------------------------------------------------|
| 5   |                           Starting index                              |
|-----+-----------------------------------------------------------------------|
| 6   |                           Reserved                                    |
|-----+-----------------------------------------------------------------------|
| 7   |                           Ending track                                |
|-----+-----------------------------------------------------------------------|
| 8   |                           Ending index                                |
|-----+-----------------------------------------------------------------------|
| 9   |                           Control                                     |
+=============================================================================+