Page 10 which is kept blank, in Arty 7 board schematics, has USB port (J10) to USB controller patented design. The output pins from it appear at J8 JTAG port. Therefore how can we use external JTAG HS2/HS3 type module at J8 as its output will be shorting to similar pins from USB controller IC (FT2232H) connected to J10? or resistors like R145, R147 prevent them shorting each other.