PEX 8649, PCI Express Gen 2 Switch, 48 Lanes, 12 Ports

© PLX Technology, www.plxtech.com

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5/14/2009, Version 1.1

Development Tools

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PEX 8649

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PEX 8649

8 Disk Chassis

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PEX 8612

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PEX 8612

PEX 8612

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PEX 8616

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PLX offers hardware and software tools to enable rapid

customer design activity. These tools consist of a hardware

module (PEX 8649 RDK), hardware documentation

(available at www.plxtech.com), and a Software

Development Kit (also available at www.plxtech.com).

ExpressLane PEX 8649 RDK

The PEX 8649 RDK (see Figure 10) is a hardware module

containing the PEX 8649 which plugs right into your

system. The PEX 8649 RDK can be used to test and

validate customer software, or used as an evaluation

vehicle for PEX 8649 features and benefits. The PEX 8649

RDK provides everything that a user needs to get their

hardware and software development started.

Figure 9. N+1 Failover.

Software Usage Model

Software Development Kit (SDK)

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 8649 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).

PLX’s Software Development Kit is available for

download at www.plxtech.com/sdk. The software

development kit includes drivers, source code, and GUI

interfaces to aid in configuring and debugging the PEX

8649. For more information, please refer to the PEX 8649

RDK Product Brief.

Both performancePAK and visionPAK are supported by

PLX’s RDK and SDK, the industry’s most advanced

hardware- and software-development kits.

Product Ordering Information

Part Number

Description

PEX8649-AA50BC F

48-Lane, 12-Port PCI Express Switch,

Pb-Free (27x27mm

PEX8649-16U16D AIC

RDK

PEX 8649 Rapid Development Kit with

x16 Upstream and Two x16 Downstream

Interrupt Sources/Events

The PEX 8649 switch supports 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 8649 for hot

plug events, doorbell interrupts, baseline error reporting,

and advanced error reporting.

PLX Technology, Inc. All rights reserved. PLX, the PLX logo, ExpressLane,

Read Pacing and Dual Cast are trademarks of PLX Technology, Inc. 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 assumes no responsibility for any errors that may appear in

this material. PLX reserves the right, without notice, to make changes in product

design or specification.

 

Visit www.plxtech.com for more information.

Figure 10. PEX8649-16U16D AIC RDK