Sd Card Slot - Alinx AX7Z035B User Manual

AX7Z035B User Manual
PCIE_TX0_N
PCIE_TX1_P
PCIE_TX1_N
PCIE_TX2_P
PCIE_TX2_N
PCIE_TX3_P
PCIE_TX3_N
PCIE_CLK_P
BANK112_CLK0_P
PCIE_CLK_N
BANK112_CLK0_N
PCIE_PERST

3.9 SD Card Slot

The AX7Z035B FPGA board contains a Micro SD card interface to provide user
access to the SD card memory, the BOOT program for storing 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, so
here we use the TXS02612 level converter to realize the connection. The schematic
of the Zynq7000 PS and SD card connector is shown in Figure 3-9-1:
www.alinx.com
BANK112_TX3_N
BANK112_TX2_P
BANK112_TX2_N
BANK112_TX1_P
BANK112_TX1_N
BANK112_TX0_P
BANK112_TX0_N
B13_L24_P
PCIE Channel 0 Data Transmit
R1
PCIE Channel 1 Data Transmit
U2
PCIE Channel 1 Data Transmit
U1
PCIE Channel 2 Data Transmit
W2
PCIE Channel 2 Data Transmit
W1
PCIE Channel 3 Data Transmit
AA2
PCIE Channel 3 Data Transmit
AA1
PCIE Channel Reference Clock
R6
PCIE Channel Reference Clock
R5
Y18 PCIE board reset signal
Positive
Negative
Positive
Negative
Positive
Negative
Positive
Negative
Positive
Negative
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