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 8508 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 8508 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 8508 for hot-plug events, baseline error
reporting, and advanced error reporting.
Development Tools
PLX is offering hardware and software tools (PEX 8508RDK)
to enable rapid customer design activity. These tools include
the hardware Rapid Development Kit (RDK) and the Software
Development Kit (SDK).
RDK
The RDK hardware module includes the PEX 8508 with by
default one upstream x4 port connected to a male-edge
connector, and four downstream x1 ports each connected to a
x16 female slot connector. Third party adapters from x16 to x1
allow the x4 connector to plug into narrower slots. Cards with
larger than x1 connectors can plug into the x16 female
connectors and will auto-negotiate down to x1.
The PEX 8508RDK can be installed in a motherboard, used as
a riser card, or configured as a bench-top board.
The PEX 8508RDK can be used to test and validate customer
software. Additionally, it can be used as an evaluation vehicle
for the PEX 8508 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
Figure 7. PEX 8508RDK
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: www.plxtech.com
Product Ordering Information
Part Number
PEX 8508-AC25BI
PEX 8508-AC25BI G
PEX 8508RDK
Description
8-Lane, 5 Port PCIe Switch, 296-ball PBGA 19x19 pkg
8-Lane, 5 Port PCIe Switch, 296-ball PBGA 19x19 pkg, Pb-free
Rapid Development Kit for PEX 8508
Please visit the PLX Web site at
http://www.plxtech.com/8508
or contact PLX sales at 408-774-9060 for sampling.
© 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.
PCI8508-SIL-PB-P1-1.7
05/07
PLX [ PLX TECHNOLOGY ]
