Part 3.7: Sd Card Slot Interface - Alinx ZYNQ UltraScale+ AXU9EGB User Manual

USB to serial port ZYNQ pin assignment:
Signal name
PS_UART_TX
PS_UART_RX
PL_UART_TX
PL_UART_RX

Part 3.7: SD Card Slot Interface

The AXU9EGB FPGA Development Board contains a Micro SD card
interface to provide user access to the SD card memory, the BOOT
program for the ZU9EG chip, the Linux operating system kernel, the file
system and other user data files.
The SDIO signal is connected to the IO signal of the PS BANK501 of
ZU9EG. Since the VCCMIO of the BANK is set to 1.8V, but the data level of the
SD card is 3.3V, connected through the TXS02612 level shifter. The schematic
of the ZU9EG PS and SD card connector is shown in Figure 3-7-1:
47 / 66
Figure 3-6-1: USB to serial port schematic
Pin Name Pin Number
PS_MIO43
PS_MIO42
B50_L4_P
B50_L4_N
AXU9EGB User Manual
Description
K24 PS Uart Data Output
M24 PS Uart Data Input
D10 PL Uart Data Output
D10 PL Uart Data Input
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