Software Usage Model

From a system model viewpoint, each PCI Express port is a

virtual PCI to PCI bridge device and has 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 8532 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 8532 switch support the INTx interrupt

message type (compatible with PCI 2.3 Interrupt signals) or

Message Signaled Interrupts (MSI) when enabled.

Interrupts/messages are generated by PEX 8532 for hot plug

events, baseline error reporting, and advanced error reporting.

Development Tools

PLX is offering hardware and software tools (PEX 8532

RDK) to enable rapid customer design activity. These tools

are bundled in a Rapid Development Kit (RDK). The RDK

consists of hardware, hardware documentation and Software

Development Kit (SDK).

The RDK hardware module includes the PEX 8532 with a x16

upstream port, a x8 downstream port and two x4 downstream

ports. The upstream port is a x16 PCI Express edge connector.

PLX offers adapters (x8, x4, and x1) which can be used to

plug the RDK in smaller slots.

The PEX 8532 RDK board can be installed on a motherboard,

used as a riser card, or configured as a bench-top board. The

PEX 8532 RDK can be used to test and validate customer

software. Additionally, it can be used as an evaluation vehicle

for the PEX 8532 features and benefits.

SDK

The SDK tool set includes:

- Linux and Windows drivers

- C/C++ Source code, Objects, libraries

- User’s Guides, Application examples, Tutorials

PLX Technology, Inc.

870 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

Description

PEX8532-BC25BI

32 Lane, 8 Port PCIe Switch, 680-ball PBGA 35x35mm pkg

PEX8532-BC25BI G

32 Lane, 8 Port PCIe Switch, 680-ball PBGA 35x35mm pkg, Pb-free

PEX 8532-BC RDK

PEX 8532 Rapid Development Kit

x8 Adapter

PCI Express x16 to x8 Adapter

x4 Adapter

PCI Express x16 to x4 Adapter

x1 Adapter

PCI Express x16 to x1 Adapter

© 2006 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 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.

PCI8532-SIL-PB-P1-1.6

01/07

Figure 7. PEX 8532 RDK