missing board schematics of Micro-USB JTAG bridge

[Sydney]

Within the schematics of the NEXYS 4 and NEXYS VIDEO boards I couldn't find the part with the Micro-USB JTAG bridge. The part with the FT2232HQ chip is left out in both schematics.

Is there a reason for neglecting those parts?

Could I find the schematics elsewhere?

I'm especially interested in the differences between a combined JTAG and UART Micro-USB solution (as seen on NEXYS 4) and two separate solutions Micro-USB JTAG (1) and Micro-USB UART (2) (as seen on NEXYS VIDEO).

[D@n]

@Sydney,

Digilent doesn't post how they connect their micro to the JTAG port.  They claim its proprietary. 

Xess publishes how they did it, though, so you might wish to check their github pages.

Dan