PEX8114-AA13BI ETC1 [List of Unclassifed Manufacturers], PEX8114-AA13BI Datasheet - Page 2

• Manufacturer Part Number: PEX8114-AA13BI
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

Board and System Design Applications
The ExpressLane PEX 8114 can be used on PCI Express-
based motherboards or embedded systems to connect with
legacy PCI or PCI-X slots or devices. In addition, the bridge
can be used in add-on cards and mezzanine boards in forward
or reverse bridge modes.
Motherboards
The simple design and small footprint of the ExpressLane
PEX 8114 make it an ideal bridge solution for the
motherboard (see Figure 1), providing for PCI or PCI-X slot
connectivity and for interface to legacy native PCI or PCI-X
silicon I/O components on the motherboard.
In addition, the ExpressLane PEX 8114 is ideal for enabling
PCI Express slot connectivity on motherboards with existing
PCI or PCI-X chipsets (see Figure 2). The reverse bridge
function including reverse bridge root registers means
customers can upgrade existing designs without changing their
choice of CPU chipset.
Figure 1. Forward Bridge on Motherboard
Figure 2. Reverse Bridge on Motherboard
Adapter Boards-Forward Bridge
In Forward Transparent Mode (see Figure 3), the
ExpressLane PEX 8114 can be used to quickly upgrade legacy
PCI or PCI-X adapter board designs to be compatible with
PCI Express standard interface slots.
In Forward Non-Transparent Mode (see Figure 4), the
ExpressLane PEX 8114 will enable intelligent subsystems on
the PCI bus to manage local configuration without
interference from the host processor on the PCI Express side.
Figure 4. Forward Non-Transparent Mode
Figure 3. Forward Transparent Mode