Altera Nios Development Board Cyclone II Edition - Manual (Page 15)

Altera Corporation Reference Manual 2–3
May 2007 Nios Development Board Cyclone II Edition
Board Components
The sections that follow describe each component in detail.
Cyclone II
EP2C35 Device
(U62) U62 is a Cyclone II FPGA in a 672-pin FineLine BGA ® package.
Depending on the board revision, the part number is EP2C35F672C5 or
EP2C35F672C5N.
Table 2–2 lists the device features.
1 Preproduction builds of the Nios Development Board, Cyclone
II Editon have an EP2C35F6728ES device.
SW9 Factory Config button Push-button switch to reconfigure the FPGA with the
factory-programmed reference design.
SW10 Reset, Config Push-button switch to reset the board.
LED0 – LED3, LED6 Configuration status LEDs LEDs that display the current configuration status of
the FPGA.
Clock Circuitry
Y2 Oscillator 50 MHz clock signal driven to FPGA.
J4 External clock input Connector to FPGA clock pin.
Power Supply
J26 DC power jack 16V DC unregulated power source.
D34 Bridge rectifier Power rectifier allows for center-negative or center-
positive power supplies.
J28, J29, J30, J33 (and
more) Optional Power Supply External power supply can be connected for high-
current applications.
Table 2–1. Nios Development Board, Cyclone II Edition Components & Interfaces (Continued)
Board Designation Name Description
Table 2–2. Cyclone II EP2C35 Device Features
LEs 33,216
M4K Memory Blocks 105
Total RAM Bits 483,840
Embedded 18x18 Multiplier Blocks 35
PLLs 4
User I/O Pins 475