Alinx AX7021 - USB to Serial Port

ZYNQ FPGA Development Board AX7021 User Manual
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9134_SD3
B35_L2_N
D17
Audio Interface I2S Data3
9134_nRESET
B35_L11_P
C17
Reset signal
9134_INT
B35_L13_N
B20
Interrupt signal
9134_SCL
B35_L18_N
B22
IIC control clock
9134_SDA
B35_L15_N
A22
IIC Control data
3.5 USB to serial port
The AX7021 carrier board is also equipped with a serial port interface for
overall debugging of the ZYNQ7000 system. The conversion chip uses the
USB-UAR chip of Silicon Labs CP2102GM. The USB interface uses the MINI
USB interface. It can be connected to the USB of the PC with a USB cable. The
port performs separate power supply and serial data communication of the core
board.
Figure 3-5-1 detailed the schematic diagram of the USB Uart circuit design.
Figure 3-5-1: The Schematic Diagram of the USB Uart Circuit
Figure 3-5-2: The UART on the Carrier Board