Altera DE2-115 User Manual download pdf (Page 67)

 SD Card

Many applications use a large external storage device, such as SD Card or CF card, for storing data.

The DE2-115 board provides the hardware needed for SD Card access. Users can implement

custom controllers to access the SD Card in SPI mode and SD Card 4-bit or 1-bit mode. Figure

4-37 shows the related signals.

Finally, Table 4-27~Table 4-30 lists all the associated pins for interfacing FPGA respectively.

Figure 4-37 Connections between FPGA and SD Card Socket

Table 4-27 SRAM Pin Assignments

Signal Name FPGA Pin No. Description I/O Standard

SRAM_ADDR[0] PIN_AB7 SRAM Address[0] 3.3V

SRAM_ADDR[1] PIN_AD7 SRAM Address[1] 3.3V

SRAM_ADDR[2] PIN_AE7 SRAM Address[2] 3.3V

SRAM_ADDR[3] PIN_AC7 SRAM Address[3] 3.3V

SRAM_ADDR[4] PIN_AB6 SRAM Address[4] 3.3V

SRAM_ADDR[5] PIN_AE6 SRAM Address[5] 3.3V

SRAM_ADDR[6] PIN_AB5 SRAM Address[6] 3.3V

SRAM_ADDR[7] PIN_AC5 SRAM Address[7] 3.3V

SRAM_ADDR[8] PIN_AF5 SRAM Address[8] 3.3V

SRAM_ADDR[9] PIN_T7 SRAM Address[9] 3.3V

SRAM_ADDR[10] PIN_AF2 SRAM Address[10] 3.3V

SRAM_ADDR[11] PIN_AD3 SRAM Address[11] 3.3V

SRAM_ADDR[12] PIN_AB4 SRAM Address[12] 3.3V

SRAM_ADDR[13] PIN_AC3 SRAM Address[13] 3.3V

SRAM_ADDR[14] PIN_AA4 SRAM Address[14] 3.3V

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 120 121

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Altera DE2-115 User Manual Page 67