Alinx Cyclone IV FPGA User Manual page 38

Cyclone IV FPGA Development Board AX515 User Manual
the United States conducted substantial research and development. In 2000,
these companies initiated the establishment of the SD Association (Secure
Digital Association, SDA), which has a strong lineup and attracted a large
number of manufacturers. 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 we have
expanded supports SPI mode and SD mode. The SD card used is a MicroSD
card, the schematic detailed as Figure 16-1:
Figure 16-1: SD Card Schematic
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