Table 51
+=====-========-========-========-========-========-========-========-========+
| Bit| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|Byte | | | | | | | | |
|=====+=======================================================================|
| 0 | Operation code (4Dh) |
|-----+-----------------------------------------------------------------------|
| 1 | Logical unit number | Reserved | PPC | SP |
|-----+-----------------------------------------------------------------------|
| 2 | PC | Page code |
|-----+-----------------------------------------------------------------------|
| 3 | Reserved |
|-----+-----------------------------------------------------------------------|
| 4 | Reserved |
|-----+-----------------------------------------------------------------------|
| 5 | (MSB) |
|-----+--- Parameter pointer ---|
| 6 | (LSB) |
|-----+-----------------------------------------------------------------------|
| 7 | (MSB) |
|-----+--- Allocation length ---|
| 8 | (LSB) |
|-----+-----------------------------------------------------------------------|
| 9 | Control |
+=============================================================================+