Table 92

+=====-========-========-========-========-========-========-========-========+ 
|  Bit|   7    |   6    |   5    |   4    |   3    |   2    |   1    |   0    |
|Byte |        |        |        |        |        |        |        |        |
|=====+=======================================================================|
| 0   | (MSB)                                                                 |
|-----+---                        Mode data length                         ---|
| 1   |                                                                 (LSB) |
|-----+-----------------------------------------------------------------------|
| 2   |                           Medium type                                 |
|-----+-----------------------------------------------------------------------|
| 3   |                           Device-specific parameter                   |
|-----+-----------------------------------------------------------------------|
| 4   |                           Reserved                                    |
|-----+-----------------------------------------------------------------------|
| 5   |                           Reserved                                    |
|-----+-----------------------------------------------------------------------|
| 6   | (MSB)                                                                 |
|-----+---                        Block descriptor length                  ---|
| 7   |                                                                 (LSB) |
+=============================================================================+