DCA1000EVM: The question about output data format

hi,

i use DCA1000 + AWR1642 to capture data.

This is the configuration.(In raw data mode)

And this is my captured data.

For example, the offset is 00000000,the data is 0x2000 or 0x0020?  

1.Is the first transmission high 8 bits or low 8 bits?

2.Does MSB First mean that the upper 8 bits are transmitted first?

3.where can i get the matlab code of  the post process?

Thank you very much