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