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ZYNQ Ultr FPGA Board AXU4EV-E User Manual
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Figure 3-7-1: SD Card Connection Diagram
SD card slot pin assignment:
Signal Name
Pin Name
Pin Number
Description
SD_CLK
PS_MIO51
l21
SD Clock Signal
SD_CMD
PS_MIO50
M19
SD Command Signal
SD_D0
PS_MIO46
L20
SD Data0
SD_D1
PS_MIO47
H21
SD Data1
SD_D2
PS_MIO48
J21
SD Data2
SD_D3
PS_MIO49
M18
SD Data3
SD_CD
PS_MIO45
K20
SD card insertion signal
Part 3.8: Expansion Header
The AXU4EV-E board is reserved with two 0.1-inch standard pitch 40-pin
expansion ports J45 and J46, which are used to connect the ALINX modules or
the external circuit designed by the user. The expansion port has 40 signals, of
which 1-channel 5V power supply, 2-channel 3.3 V power supply, 3-channle
ground and 34 IOs.
Do not directly connect the IO directly to the 5V device
to avoid burning the FPGA. If you want to connect 5V equipment, you
need to connect level conversion chip.
J45 Expansion Header Pin Assignment