December 20,2005
Table of Contents
1OVERVIEW .....................................................................................................................1
2THE VIRTEX-4 MB SYSTEM BOARD ..............................................................................1
3FUNCTIONAL DESCRIPTION .........................................................................................2
3.1 LVDS INTERFACE .......................................................................................................3
3.1.1 SPI-4.2 Interface.................................................................................................4
3.1.2 SPI-4.2 Pin Assignments.....................................................................................4
3.1.3 LVDS Connector.................................................................................................6
3.2 DDR SDRAM ............................................................................................................7
3.3 FLASH.......................................................................................................................8
3.4 CLOCK SOURCES ........................................................................................................9
3.4.1 Programmable LVDS Clock Source...................................................................11
3.4.2 ICS8442 Programmable LVDS Clock Synthesizer...............................................11
3.4.3 ICS8442 Clock Generation................................................................................13
3.4.4 ICS8442 Programming Modes...........................................................................14
3.4.5 ICS8442 M and N Settings ................................................................................14
3.5 10/100 ETHERNET PHY .............................................................................................18
3.6 LCD PANEL..............................................................................................................20
3.7 USB 2.0 TO RS232 PORT..........................................................................................20
3.8 RS232....................................................................................................................21
3.9 USER DIP AND PB SWITCHES.....................................................................................22
3.10 USER LEDS..........................................................................................................23
3.11 VBAT JUMPER......................................................................................................23
3.12 CONFIGURATION AND DEBUG PORTS.........................................................................23
3.12.1 JTAG Chain .....................................................................................................23
3.12.2 System ACE Module Connector.........................................................................24
3.12.3 Serial Data Flash..............................................................................................26
3.12.4 JTAG Port (PC4) ..............................................................................................31
3.12.5 Configuration Modes .........................................................................................31
3.13 VOLTAGE REGULATORS ..........................................................................................32
3.14 BANK I/O VOLTAGE................................................................................................33
3.15 P240 EXPANSION MODULE SIGNAL ASSIGNMENTS......................................................33
4REVISIONS...................................................................................................................36
APPENDIX A.......................................................................................................................37
