Hi Yagami,
Our prototype has one of the 1701's feeding buttered LRCLK and BCLK to all the others (the second option above). The TDM bus is working well, with the various signals entering and exiting where needed much like cars on the Capitol Beltway. When my friend Mike lays out a board, it's art.
Image may be NSFW.
Clik here to view.
Best regards,
Bob