Part 3.5: Sd Card Slot - Alinx AX7050 User Manual

Part 3.5: SD Card Slot

The SD card (Secure Digital Memory Card) is a memory card
based on the semiconductor flash memory process. It was
completed in 1999 by the Japanese Panasonic-led concept, and the
participants Toshiba and SanDisk of the United States conducted
substantial research and development. In 2000, these companies
launched the SD Association (Secure Digital Association), which has
a strong lineup and attracted a large number of vendors. These
include IBM, Microsoft, Motorola, NEC, Samsung, and others.
Driven by these leading manufacturers, SD cards have become the
most widely used memory card in consumer digital devices.
The SD card is a very common storage device. The SD card
that we have extended supports SPI mode. The SD card used is a
MicroSD card. The schematic diagram is shown in Figure 3-5-1.
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FPGA
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Spartan-7 FPGA Development Board AX7050 User Manual
SD_CS
SD_DATA_IN
SD_CLK
SD_DATA_OUT
Figure 3-5-1: SD Card Schematic
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