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Summary of Contents for PLX PEX 8112 Fwd Riser
- Page 1 PEX 8112 Fwd Riser Reference Design (For Board Revision 1.0) Version 1.1 September 9, 2010 Website: www.plxtech.com Technical Support: www.plxtech.com/support Copyright © 2010 by PLX Technology, Inc. All Rights Reserved – Version 1.1 September 9, 2010...
- Page 2 © 2010 PLX Technology, Inc. All rights reserved. PLX Technology, Inc. retains the right to make changes to this product at any time, without notice. Products may have minor variations to this publication, known as errata. PLX assumes no liability whatsoever, including infringement of any patent or copyright, for sale and use of PLX products.
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Page 3: Table Of Contents
6. Bill of Materials and Schematics ....................... 10 IGURES Figure 1. PEX 8112 Fwd Riser – 3.3V PCI ....................1 Figure 2. PEX 8112 Fwd Riser – 5V PCI ....................1 Figure 3. PEX 8112 Fwd Riser Hardware Architecture ................4 Figure 4. - Page 4 PEX 8112 Fwd Riser, or for any damage or loss caused by deletion of data as a result of malfunction or repair.
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Page 5: General Information
PCI Express port to be connected to a host system slot by way of a standard PCI Express edge connector (the PEX 8112 Fwd Riser is designed to plug into a PCI Express motherboard slot). The PEX 8112 Fwd Riser also... -
Page 6: Pex 8112 Features
Supports Forward and Reverse Bridging, allowing systems to migrate to PCI Express and leverage software compatibility Note: The PEX 8112 Fwd Riser is for Forward Mode designs. For Reverse Mode designs, refer to the PEX 8112 Rev Riser. Integrated PCI Express interface with x1 link, dual-simplex 2.5 Gbps SerDes... -
Page 7: Pex 8112 Fwd Riser System Architecture
The PEX 8112 Fwd Riser’s form factor is based on the PCI Local Bus Specification, Revision 3.0. The PCI interface supports up to 32-bit transfers, at up to 66 MHz. The PEX 8112 Fwd Riser has one PCI slot (female) connector (straddle mount). -
Page 8: Pex 8112 Fwd Riser Hardware Architecture
PCI Interface This PEX 8112 Fwd Riser has one female PCI slot, which connects to the PEX 8112’s PCI bus. Connector J3 is a straddle-mount (SMT) connector that has its own REQ#/GNT# pair, which can be arbitrated by the PEX 8112. -
Page 9: Pci Power
PEX 8112 Fwd Riser Power The PEX 8112 Fwd Riser has two sources for DC power. The first source is the card edge connector (J1). This x1 connector provides up to 500 mA at +12V, and 3.0A at +3.3V. Card edge power is intended to power only PEX 8112 Fwd Riser components, as well as optional PCI connector (J3). -
Page 10: Power Management Signaling
DEVSPECCTL register Beacon Generate Enable bit is set PWRMNGCSR register PME Enable bit is set The WAKEOUT# signal is used only when the PEX 8112 is in Forward Bridge mode. PEX 8112 Fwd Riser Reference Design for Board Revision 1.0 Version 1.1 –... -
Page 11: Mechanical Architecture
ECHANICAL RCHITECTURE Monitoring Point, Indicator, Control, and DIP Switch Summary This section summarizes the interfaces available on the PEX 8112 Fwd Riser for controlling and monitoring PEX 8112 performance. 4.1.1 Monitoring Points Voltages to the PEX 8112 and PCI bus can be monitored at the following component locations:... -
Page 12: Pcb Stackup
4.1.4 PCB Stackup The PEX 8112 Fwd Riser is a 6-layer, 62-mil thick PCB. The target signal impedance for all routing layers is 60 Ohms ±15% single-ended impedance and 100 Ohms ±5% differential. (Refer to Figure 5.) SOLDERMASK L1, SIGNAL 1... -
Page 13: References
PCI Express Card Electromechanical (CEM) Specification, Revision 1.0a PCI Express-to-PCI Bridge Specification 1.0 PCI Local Bus Specification, Revision 3.0 PEX 8112 Fwd Riser Hardware Reference Manual for Board Revision 1.0 Version 1.1 – Copyright © 2010 by PLX Technology, Inc. All rights reserved... -
Page 14: Bill Of Materials And Schematics
Bill of Materials and Schematics The following pages contain the PEX 8112 Fwd Riser bill of materials and schematics. Component Item Man. Man. Part number Description Package Type Designator(s) ( ) = Do Not Populate C11, C13, C15, C17, Cap, Ceramic, 0.01 uF, 04023D103KAT2A 0.01 uF... - Page 15 PLX Part # PEX 8112 Fwd Riser Revision Product Name: PEX 8112 Fwd Riser Date October 23, 2007 PEX 8112 Fwd Riser Hardware Reference Manual for Board Revision 1.0 Version 1.1 – Copyright © 2010 by PLX Technology, Inc. All rights reserved...
- Page 16 Cover Page Cover Page Size Size Size Document Number Document Number Document Number PEX 8112 FWD RISER PEX 8112 FWD RISER PEX 8112 FWD RISER Date: Date: Date: Wednesday, September 08, 2010 Wednesday, September 08, 2010 Wednesday, September 08, 2010...
- Page 17 Place series termination resistors close to PCLKO Match trace lengths for nets PCLKI, PCI_CLK PRSNT Trace Routing PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 www.plxtech.com...
- Page 18 0.1 uF HOLD# EEWRDATA EERDATA AT25640 AT25640 DO NOT INSTALL PDIP-8 Socket PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 www.plxtech.com www.plxtech.com www.plxtech.com...
- Page 19 AD20 ACK64# REQ64# Do Not Populate ACK64# REQ64# RT-HD2-GT120ECN RT-HD2-GT120ECN PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 www.plxtech.com www.plxtech.com www.plxtech.com...
- Page 20 0.01 (1206) 0.01 (1206) 3.3VCC +VI/O 5VCC 47 (1206) 47 (1206) PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 870 Maude Ave, Sunnyvale, CA 94085 www.plxtech.com www.plxtech.com www.plxtech.com...
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