Understanding FTDI chip's implementation with ZYNQ FPGA

Hi there. I am a college student trying to understand the hardware design of the PYNQ-Z1 REV C board. I am trying to understand how the FTDI chip, IC17, is being used. I understand that it interfaces with the USB-uart but how does it interface with the ZYNQ? Is there a schematic capture available? I have looked at the schematic that is available but it is missing the page including the FTDI chip.