Altera Cyclone II FPGA Starter Development Board - Manual (Page 50)

2–32 Reference Manual Altera Corporation
Cyclone II FPGA Starter Development Board October 2006
Development Board Components
Figure 2–24. SD Card Interface Schematic
Table 2–15 lists the SD Card signal connections to FPGA pins.
RS-232 Serial Port
The development board uses a MAX232 transceiver chip and a 9-pin
D-SUB connector (
Figure 2–25 ) for RS-232 communications.
f
For detailed information on how to use the transceiver, refer to the
BoardDesignFiles\Datasheet
folder in the kit installation directory or
connect to the manufacturer’s web site.
Table 2–15. SD Card FPGA Connections
Signal Name FPGA Pin Description
SD_DAT W20 Data to/from SD Card
SD_DAT3 U20 SD Card Chip Select
SD_CMD Y20 Command line for SD Card
SD_CLK V20 SD Card Clock