ADAS3022 data transfer

Hi,

I would like to use ADAS3022.

But, I have two question. About DIN SDO

#1        In case of BUSY = H, is it not possible to transfer SDO data?(In Figure4)

#2       Although it can be extended for tDDCA, it says that it can not be recommended, but what kind of problem will

          occur when used?

      

Best Regard,

Yuya