Can I set TVP5158 working at 1-Ch ,Non-interleaved, 27M and BT.656 output mode?

      After I set the TVP5158 working at 1-Ch ,Non-interleaved, 27M and BT.656  , PAL output mode, I get data like as follows:

      ff 08 00 00    ec 80 19 80   18 80 19 80   19 81 19 80    80 10 80 10     80 10 80 10     80 10 80 10 
     80 10 80 10   80 10 ff 08     00 00 c7 80   11 80 12 80    10 80 10 80     10 80 10 80     10 80 10 80 
    10 80 10 80   10 80 10 80   10 ff 08 00     00 c7 80 11     10 80 10 80     10 80 10 80     10 80 10 80 
    10 80 10 80   10 80 10 80   10 ff 08 00     00 80 80 11     10 80 10 80     10 80 10 80     10 80 10 80
    10 80 10 80   10 80 10 80   10 80 10 80   10 80 10 ff        80 10 80 10      80 10 80 10     8010 80 10  

   1) if  removing  the data 08 ," ff  00 00 ec"  is same as the SAV or EAV ,  Why do I  get a invalid data 08?

    2) Between SAV and EAV , there is 280 or 268 bytes controling signal, but there is few  data between that.

   3) In register B0h,  Channel_Mux_Number  00  means  "1-Ch (reserved)" , can I set TVP5158 work at "1-Ch (reserved)"?