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