Altera Stratix IV GX FPGA Development Board - Manual (Page 34)

2–26 Chapter 2: Board Components
General User Input/Output
Stratix IV GX FPGA Development Board, 530 Edition Reference Manual November 2010 Altera Corporation
Table 2–22 lists the crystal oscillators component references and manufacturing
information.
General User Input/Output
This section describes the user I/O interface to the FPGA, including the push-buttons,
DIP switches, status LEDs, and character LCD.
User-Defined Push-Button Switches
The development board includes four user-defined push-button switches: three
general switches and one CPU reset. For information on the system and safe reset
push-button switches, refer to
“Reset Configuration Push-Button Switch” on
page 2–19 .
Board references S3, S4, and S5 are push-button switches that allow you to interact
with the Stratix IV GX device. When the switch is pressed and held down, the device
pin is set to logic 0; when the switch is released, the device pin is set to logic 1. There is
no board-specific function for these general user push-button switches.
Samtec HSMC
HSMB_CLK_OUT_P1 K8
LVDS or 2.5-V LVDS output or two 2.5-V CMOS outputs.
HSMB_CLK_OUT_N1 J8
Samtec HSMC
HSMB_CLK_OUT_P2 K10
LVDS or 2.5-V
LVDS output. Can also support two CMOS
outputs.
HSMB_CLK_OUT_N3 J10
Table 2–21. Stratix IV GX FPGA Development Board, 530 Edition Clock Outputs (Part 2 of 2)
Connector Schematic Signal Name Pin I/O Standard Description
Table 2–22. Crystal Oscillator Component References and Manufacturing Information
Board
Reference
Description Manufacturer
Manufacturer
Part Number
Manufacturer Website
X1 125 MHz LVDS Saw Oscillator Epson
EG-2121CA
125.0000M-LGPNL3
www.eea.epson.com
X2
156.25 MHz LVDS Saw
Oscillator
Epson
EG-2121CA
156.2500M-LHPNL3
www.eea.epson.com
X3
148.5 MHz Voltage Controlled
LVDS Crystal Oscillator
Connor-Winfield V902-148.5MHz www.conwin.com
X6
100 MHz LVDS Programmable
Crystal Oscillator
Silicon Labs 570FAB000433DG www.silabs.com
X7
155.5 MHz LVPECL Saw
Oscillator
Epson
EG-2121CA
155.5200M-PGPNL3
www.eea.epson.com
X8 50 MHz Crystal Oscillator Epson
XG-1000CB
50.0000M-DCL3
www.eea.epson.com
X9 125 MHz Crystal Oscillator ECS ECS-3525-1250-B www.ecsxtal.com