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 8624 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 PEX 8624 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 8624 for hot
plug events, doorbell interrupts, baseline error reporting,
and advanced error reporting.
Development Tools
PLX offers hardware and software tools to enable rapid
customer design activity. These tools consist of a
hardware module (PEX 8624RDK), hardware
documentation (available at
and a
Software Development Kit (also available at
ExpressLane
PEX 8624RDK
The PEX 8624RDK is a hardware module containing the
PEX 8624 which plugs right into your system. The
PEX 8624RDK can be used to test and validate customer
software, or used as an evaluation vehicle for PEX 8624
features and benefits. The PEX 8624RDK provides
everything that a user needs to get their hardware and
software development started.
Software Development Kit (SDK)
PLX’s Software Development Kit is available for
download at
The software
development kit includes drivers, source code, and GUI
interfaces to aid in configuring and debugging the
PEX 8624.
Product Ordering Information
Part Number
PLX Technology, Inc.
870 Maude Ave.
Sunnyvale, CA 94085 USA
PEX8624-BB50BC
PEX8624-BB50BC F
PEX8624-BB RDK
Description
24-Lane, 6-Port PCI Express Switch (19x19mm
2
)
24-Lane, 6-Port PCI Express Switch, Pb-Free (19x19mm
2
)
PEX 8624 Rapid Development Kit
Please visit the PLX Web site at
or contact PLX sales at 408-774-9060 for sampling.
© 2009 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.
PEX8624-SIL-PB-1.0
04/09
PLX [ PLX TECHNOLOGY ]
