Alinx AX7021 - SD Card Slot

ZYNQ FPGA Development Board AX7021 User Manual
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Uart Pin Assignment:
Signal Name
Pin Name
Pin Number
Explain
UART_RXD
PS_MIO13_500
A6
Uart data input
UART_TXD
PS_MIO12_500
C5
Uart data output
3.6 SD card slot
The AX7021 carrier board contains a Micro SD card interface to provide
user access to the SD card memory, the BOOT program for the ZYNQ 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
ZYNQ. 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 Zynq7000 PS and SD card connector is shown in Figure 3-6-1
Figure 3-6-1: SD Card Connection Diagram
Figure 3-6-2: SD Card on the Carrier Board