The SCU35 board provides three (3) UART interfaces connected between the XCSU35P FPGA and FTDI FT4232HL (U11) USB-to-Quad-UART bridge device through TI SN74AVC4T245 level-shifters U8, U9, U12, and U14. The FT4232HL (U11) port assignments are listed in the following table.
| FT4232HL | XCSU35P SU+ Device |
|---|---|
| Port AD (JTAG) | XCSU35P JTAG chain |
| Port BD (UARTB) | SCU35_UARTB |
| Port CD (UARTC) | SCU35_UARTC |
| Port DD (UARTD) | SCU35_UARTD |
The FT4232HL UART interface connections are shown in the following figure. For more information on the FT4232HL, see the Future Technology Devices International Ltd. website.
Note: The FTDI configuration image can be programmed with the Vivado
tools. See the Programming FTDI Devices for Vivado Hardware Manager Support section in
the
Vivado Design Suite User Guide:
Programming and Debugging (UG908). Alternatively, a JTAG-SMT2 or similar from
Digilent is recommended. The detailed device connections for the feature described in
this section are documented in the SCU35 board XDC file, referenced in Xilinx Design Constraints.