Software Usage Model
From a system model viewpoint, each PCI Express port is a
virtual PCI to PCI bridge device with its own set of PCI
Express configuration registers. It is through the upstream port
that the BIOS or host can configure the other ports using
standard PCI enumeration. The virtual PCI to PCI bridges
within the PEX 8509 are compliant to the PCI and PCI
Express system models. The Configuration Space Registers
(CSRs) in a virtual primary/secondary PCI to PCI Bridge are
accessible by type 0 configuration cycles through the virtual
primary bus interface (matching bus number, device number,
and function number).
Interrupt Sources/Events
The ExpressLane PEX 8509 switch supports the INTx
interrupt message type (compatible with the PCI 2.3 Interrupt
signals) or Message Signaled Interrupts (MSI) when enabled.
Interrupts/messages are generated by the PEX 8509 for hot
plug events, baseline error reporting, and advanced error
reporting.
Development Tools
PLX offers the PEX 8509RDK which includes hardware and
software tools to enable rapid customer design activity. These
tools consist of a hardware module, hardware documentation
and a Software Development Kit (SDK).
ExpressLane
TM
PEX 8509RDK
The RDK hardware module includes the PEX 8509 with one
upstream x4 port and four downstream x1 ports.
The PEX 8509RDK hardware module can be installed in a
motherboard, used as a riser card, or configured as a bench-top
board.
The PEX 8509RDK can be used to test and validate customer
software. Additionally, it can be used as an evaluation vehicle
for the PEX 8509 features and benefits.
SDK
The SDK tool set includes:
-
Linux and Windows drivers
-
C/C++ Source code, Objects, libraries
-
User’s Guides, Application examples, Tutorial
Figure 7. PEX 8509RDK
PLX Technology, Inc.
870 W. Maude Ave.
Sunnyvale, CA 94085 USA
Tel: 1-800-759-3735
Tel: 1-408-774-9060
Fax: 1-408-774-2169
Email: info@plxtech.com
Web Site: www.plxtech.com
Product Ordering Information
Part Number
PEX 8509-AA25BI
PEX 8509-AA25BI G
PEX 8509RDK-4
PEX 8509RDK-1
Description
8-Lane, 8-port PCI Express Switch
8-Lane, 8-port PCI Express Switch Pb-Free
PEX 8509 Rapid Development Kit with x4 connector (5 ports)
PEX 8509 Rapid Development Kit with port expander (8 ports)
Please visit the PLX Web site at www.plxtech.com or contact PLX sales at 408-774-9060 for sampling.
© 2007 PLX Technology, Inc. All rights reserved. PLX and the PLX logo are registered trademarks of PLX Technology, Inc. ExpressLane is a trademark of PLX Technology, Inc.,
which may be registered in some jurisdiction. All other product names that appear in this material are for identification purposes only and are acknowledged to be trademarks or
www.plxtech.com
registered trademarks of their respective companies. Information supplied by PLX is believed to be accurate and reliable, but PLX Technology, Inc. assumes no responsibility for
any errors that may appear in this material. PLX Technology, Inc. reserves the right, without notice, to make changes in product design or specification.
8509-SIL-PB-1.2
March 2007
PLX [ PLX TECHNOLOGY ]
