Alinx AXKU15 - Part 3.7: SD Card Slot

AXKU15 User Manual
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Figure 23: Schematic diagram of USB to serial port
USB to Serial FPGA pin assignment:
Signal name
FPGA pin name
Pin number
Remark
UART_RXD
B90_L6_N
D1
Uart Data Input
UART_TXD
B90_L6_P
D2
Uart Data Output
Table 22: USB to Serial FPGA pin assignment
Part 3.7: SD Card slot
The AXKU15 base board includes a Micro-type of SD card interface to provide user access to SD card memory for
user data files. The SDIO signal is connected with the IO signal of the FPGA, supports the SPI mode and the SD
mode, and the SD card used is a MicroSD card. The schematic diagram of FPGA and SD card connector is shown
in Figure 24 below.
FPGA
U1
+3.3V
+3.3V
Figure 24: Schematic Diagram of SD Card Slot
SD card slot pin assignment:
Signal name
FPGA pin name
Pin number
Remark
SD_CD
B90_L11_N
A3
SD chip select signal