Replace Pluto with USRP

Hi Jon!
This time I need your help in some confirmation, I want to replace PLUTO with USRP either I will generate FMCW signal using USRP or from Pluto but will receive back signal from phaser to USRP. For Only receiving part I think I need to change the connection that is triggering PLUTO receiver. I will connect that pin to one of digital I/P of USRP to trigger its FIFO receive the actual number of data points and then wait for next trigger and this will continue. For that I think the trigger pin to PLUTO receiver will be that which one is coming to I10P. Correct me if I am wrong, please.
Also discuss the case where I will be transmitting and receiving both using USRP then what should be the configuration for those 14 pins header of phaser. Please explain their usage. 
majorly I want to know what essentials for chirp synchronization are.
Thankyou