pex8111 ETC-unknow, pex8111 Datasheet - Page 2

• Manufacturer Part Number: pex8111
• Description: Pci Express To Pci Bridge
• Manufacturer: ETC-unknow

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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.
PCI8111-SIL-PB-P1-1.0
Design Applications
ExpressCard™ Adapter – Forward Bridge
The PEX 8111 can be used to quickly upgrade legacy PCI
adapter board designs to be compatible with PCI Express
standard interface slots. In Figure 2, an existing CardBus™ IC
is converted for use on an ExpressCard™ with the addition of
the single-chip PEX 8111.
Figure 2. Forward Bridge in ExpressCard™
Embedded Platform – Reverse Bridge
The PEX 8111 supports Reverse bridging, enabling designers
to utilize the latest PCI Express silicon with widely entrenched
PCI host systems. Reverse bridging allows the host processor
to reside out on the PCI bus; the PEX 8111 will accept
configuration cycles from the PCI side and manage the local
PCI Express interface as a secondary entity within the PCI
software model as in Figure 3.
PLX Technology, Inc.
870 Maude Ave.
Sunnyvale, CA 94085 USA
Tel: [phone]
Tel: [phone]
Fax: [phone]
Email:
Web Site:
Figure 3. Reverse Bridge with PCI CPU
[e-mail]
www.plxtech.com
CardBus
CardBus
Host
Host
Host
CPU
CPU
CPU
PCI
PCI
PCI
Silicon
Silicon
PCI Bus
PCI Bus
PCI Bus
PCI Bus
PCI-to-PCI Express
PCI-to-PCI Express
Bridge
Bridge
8111
8111
PEX
PEX
PCI Slots
PCI Slots
8111
8111
PEX
PEX
ASIC
ASIC
PEx
PEx
Product Ordering Information
Please visit the PLX Web site at
Part Number
PEX 8111-AA33BC
PEX 8111RDK-F
PEX 8111RDK-R
http://www plxtech com
Standardized PCI Expansion – Forward and
Reverse Bridge Modes
The PEX 8111 is the ideal bridge for facilitating remote I/O
expansion in computing, communications, or data acquisition
applications (see Figure 4). The PCI SIG
cabling specification and the PEX 8111 offer a standards-
based extender for the parallel PCI bus. Because the
PEX 8111 supports reverse bridging operation, the PCI host
system is able to configure the PCI Express link.
Figure 4. Remote Expansion of PCI-Based Systems
Development Tools
PEX 8111 Reference Design Kits (PEX 8111RDKs) enable
rapid customer design. The Forward Bridge RDK hardware
module includes the PEX 8111 with a single x1 PCI Express
(card-edge) port and single PCI slot on the secondary side.
The Reverse Bridge RDK includes a standard PCI edge
connector (card-edge) and a standard PCI Express slot on the
secondary side. Each PEX 8111RDK can be installed in a
motherboard to test and validate customer software and to
evaluate PEX 8111 features and benefits.
Description
PCI Express to PCI Bridge
Forward Bridge Reference Design Kit
Reverse Bridge Reference Design Kit
PCI Express
PCI Express
Cable
Cable
or contact PLX sales at 408-774-9060 for sampling
PCI Express
PCI Express
8111
8111
PEX
PEX
®
PCI Bus
PCI Bus
PCI Express
Bridge
Bridge
Bridge
P-
P-
P-
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