Alinx AXKU040 - Part 6: USB to Serial Port

KINTEX UltraScale+ FPGA Board AXKU040 User Manual
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Part 6: USB to Serial Port
The AXKU040 FPGA development board is equipped with a Uart to USB
interface for serial communication and debugging of the development board.
The conversion chip uses the USB-UAR chip of Silicon Labs CP2102GM. The
CP2102 serial chip and the FPGA are connected by a level-shifting chip to
adapt to different FPGA BANK voltages. The USB interface uses the MINI USB
interface, which can be connected to the USB port of the upper PC for serial
data communication on the FPGA development board with a USB cable. The
schematic diagram of the USB Uart circuit design is shown below:
Figure 6-1: USB to serial port schematic
USB to serial port pin assignment:
Signal Name
FPGA Pin Name
FPGA Pin
Number
Description
UART_RX
IO_T2U_N12_CSI_ADV_B_65
N27
Uart Data Input
UART_TX
IO_T3U_N12_PERSTN0_65
K22
Uart Data Output