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 8518 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 8518 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 8518 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 PEX 8518
Rapid Development Kit (RDK), hardware documentation, and
a Software Development Kit (SDK).
PORT 1 - X4
La ne S ta tus
LED s
RDK
The RDK hardware module includes the PEX 8518 with one
x4 (card-edge slot) port and three additional x4 ports (see
Figure 7). The RDK is available with x4 card edge connector
and adapters for x1 edge connectors are available to plug the
RDK into smaller slots. The PEX 8518RDK hardware module
can be installed in a motherboard, used as a riser card, or
configured as a bench-top board. The PEX 8518RDK can be
used to test and validate customer software. Additionally, it
can be used as an evaluation vehicle for PEX 8518 features
and benefits.
POR T 2 - X4
H D P ow e r
C onne c tor
POR T 3 - X2
M a nua l
Reset
POR T 4 - X2
H ot P lug
C k t.
J TA G
H e a de r
12V-to-1V
Non-Iso
Converter
D IP s w itc h
for c fg.
SDK
The SDK tool set
includes:
-
Linux & Windows
drivers
-
C/C++ Source code,
Objects, libraries
-
User’s Guides &
Application examples
Windows/Linux Apps
User
Space
PEX 8518
8518
R e fC lk
Reset
C k t.
P E R S T#
(U ps tr e a m P ort)
x4
P E X 8518
PEX
I2 C
PEX API
Kernel
Space
PCIe
Driver
NT PnP
Driver
EEPR OM
Figure 7. PEX 8518RDK
Hardware
PCI Express Interface
Product Ordering Information
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
Part Number
PEX8518-AC25BI
PEX8518-AC25BI G
PEX 8518RDK
Description
16 Lane, 5 Port PCIe Switch, 376-ball PBGA 23x23mm pkg
16 Lane, 5 Port PCIe Switch, 376-ball PBGA 23x23mm pkg, Pb-free
PEX 8518 Rapid Development Kit with x4 Connector
Please visit the PLX Web site at
http://www.plxtech.com/8518
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 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.
PEX8518-SIL-PB- 1.6
05/07
PLX [ PLX TECHNOLOGY ]
