Part 6.5: Usb To Serial Port - Alinx ZYNQ 7000 User Manual

Part 6.5: USB to Serial Port

The AX7020 FPGA development board uses the USB to UART chip of
Silicon Labs CP2102GM. The USB interface uses the Micro USB interface.
Users can connect to the PC for serial communication using a Micro USB
cable.
The TX/RX signal of the UART is connected to the signal of the PS
BANK501 of the ZYNQ EPP. Since the VCCMIO of the BANK is set to 1.8V, the
data level of the CP2102GM is 3.3V, which is connected by the TXS0102DCUR
level conversion chip. Figure 6-8 detailed the schematic diagram of the
CP2102GM and ZYNQ connections
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ZYNQ FPGA Development Board AX7020 User Manual
Figure 6-8: USB to serial port schematic
Figure 6-9: CP2102GM chip on the FPGA Board