Hardware Owner's manual

FTXL Hardware Guide 9
Table 3. Hardware Development Platform for the Nios II Processor
devboards DBC2C20 Altera Cyclone II Development Board
The DBC2C20 Cyclone II Development Board includes an Altera Cyclone II
EP2C20 FPGA with 20 000 logic elements (LEs) that provides flexibility and
performance for a wide range of applications. The board also includes:
• 16 MB SDRAM
• 8 MB flash memory
• 16 Mbit EPCS16 configuration device
• 1 MB SRAM
• Twenty-four 3.3 V I/O ports
• For communication tasks, one RS-232, four RS-485, and two Controller
Area Network (CAN) transceivers are available
• Two 10/100 Mbps Ethernet PHYs are available for Ethernet-based
communication
• A 24 V, 16-bit wide I/O port can connect the DBC2C20 board directly to
industrial control systems
• Two low-voltage differential signaling (LVDS) ports, available on RJ-45
connectors, can be used for high-speed board communication
• For visualization tasks, an LVDS-based thin-film transistor (TFT)
interface is available
Buttons and LEDs
The DBC2C20 development board includes four pushbuttons (P24, P25, P26, and
P28) and eight light-emitting diodes (LEDs – D17 through D24). However, the
FTXL Developer’s Kit uses only one button and one LED, as shown in
Figure 1 on
page
10 and listed in Table 4 on page 10.