Table 68

+=====-========-========-========-========-========-========-========-========+  
|  Bit|   7    |   6    |   5    |   4    |   3    |   2    |   1    |   0    | 
|Byte |        |        |        |        |        |        |        |        | 
|=====+========+==============================================================| 
| 15  |  SKSV  |                  Reserved                                    | 
|-----+-----------------------------------------------------------------------| 
| 16  | (MSB)                                                                 | 
|-----+---                        Progress indication                      ---| 
| 17  |                                                                 (LSB) | 
+=============================================================================+