USB UART Interface
[Figure 2, callout 24]
The FT4232HL U8 mul-funcon USB-UART on the VCU128 board provides three level-shied
UART connecons through the single micro-AB USB connector J2.
• Channel A is congured in JTAG mode to support the JTAG chain
• Channel B implements 4-wire UART0 (level-shied) FPGA U1 bank 67 connecons
• Channel C implements 4-wire UART1 (level-shied) FPGA U1 bank 67 connecons
• Channel D implements 2-wire (level-shied) SYSCTLR U42 bank 501 connecons
The USB UART interface circuit is shown in the following gure. The FTDI FT4232HL data sheet
is available on the Future Technology Devices Internaonal Ltd. website.
Figure 9: FTDI USB JTAG/UART Circuit
X21958-121918
Chapter 3: Board Component Descriptions
UG1302 (v1.0) December 21, 2018 www.xilinx.com
VCU128 Board User Guide 37