[Figure 1, callout 8]
This is the primary Zynq UltraScale+ RFSoC PS-side UART interface and is connected to the FTDI U29 FT4232HL USB-to-Quad-UART Bridge port B through TXS0108E level-shifter U32.
The FT4232HL U29 port assignments are listed in the following table.
| FT4232HL U29 | Zynq UltraScale+ RFSoC U1 |
|---|---|
| Port A JTAG | ZCU670 JTAG Chain |
| Port B UART0 | PS_UART0 (MIO 18-19) |
| Port C UART2 | PL_UART2 Bank 89 |
| Port D UART3 | U38 System Controller UART |
The FT4232HL interface circuit connectivity is shown in the following figure.
Figure 1. ZCU670 FT4232HL Connectivity
For more information on the FT4232HL, see the Future Technology Devices International Ltd. website.
The detailed RFSoC connections for the feature described in this section are documented in the ZCU670 board XDC file, referenced in Xilinx Design Constraints.