PEX 8112RDK-F Hardware Reference Manual for Board Revision 1.0, Version 1.1
© 2008 PLX Technology, Inc. All rights reserved. iii
CONTENTS
1. General Information .............................................................................................................................................1
1.1 PEX 8112 Features .......................................................................................................................................2
1.2 PEX 8112RDK-F Features ............................................................................................................................2
2. PEX 8112RDK-F System Architecture.................................................................................................................3
3. PEX 8112RDK-F Hardware Architecture .............................................................................................................4
3.1 PEX 8112 PCI Express Bridge Device..........................................................................................................4
3.2 Serial EEPROM.............................................................................................................................................4
3.3 PCI Interface..................................................................................................................................................5
3.3.1 Slot Connectors.......................................................................................................................................5
3.3.2 PCI Terminations ....................................................................................................................................5
3.3.3 PCI Clock ................................................................................................................................................5
3.4 PCI Express Interface....................................................................................................................................5
3.4.1 RefClk......................................................................................................................................................5
3.4.2 PERST# ..................................................................................................................................................5
3.5 LED Indicators ...............................................................................................................................................6
3.6 PEX 8112RDK-F Power ................................................................................................................................6
3.6.1 PEX 8112 Bridge Device Power .............................................................................................................6
3.7 Power Management Signaling.......................................................................................................................6
3.7.1 Wakeup ...................................................................................................................................................7
4. MECHANICAL ARCHITECTURE ..................................................................................................................................8
4.1 Monitoring Point, Indicator, Control, and DIP Switch Summary....................................................................8
4.1.1 Monitoring Points ....................................................................................................................................8
4.1.2 Indicators.................................................................................................................................................8
4.1.3 Controls...................................................................................................................................................8
4.1.4 Tact Switches..........................................................................................................................................9
4.2 PEX 8112RDK-F Layout Information.............................................................................................................9
4.2.1 Trace Routing Design Rules ...................................................................................................................9
4.2.2 Power Decoupling ...................................................................................................................................9
4.2.3 PCB Stackup.........................................................................................................................................10
4.3 MidBus LAI Footprints .................................................................................................................................10
5. References.........................................................................................................................................................11
6. Bill of Materials and Schematics ........................................................................................................................12
FIGURES
Figure 1. PEX 8112RDK-F – Component Side View ................................................................................................ 1
Figure 2. PEX 8112 Forward Mode RDK Power Scheme......................................................................................... 3
Figure 3. PEX 8112RDK-F Hardware Architecture ................................................................................................... 4
Figure 4. PEX 8112RDK-F Slots Diagram................................................................................................................. 5
Figure 5. PEX 8112RDK-F Decoupling Capacitor Footprints.................................................................................... 9
Figure 6. PEX 8112RDK-F Stackup ........................................................................................................................ 10
TABLES
Table 1. PEX 8112RDK-F LED Indicators................................................................................................................. 6
Table 2. PEX 8112RDK-F Default Jumper Settings.................................................................................................. 8
