PEX 8112-AA RDK-F PLX, PEX 8112-AA RDK-F Datasheet

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PEX 8112-AA RDK-F

Manufacturer Part Number
PEX 8112-AA RDK-F
Description
kit, pex8112, forward mode; type:hardware / software - dev...
Manufacturer
PLX
Datasheet
Features
.
General Features
Integrated PCI Express Interface
PCI Interface
o Forward and Reverse bridging
o
o
o
o
o
o 1.5 V core supply voltage
o JTAG
o Four (4) GPIO pins for maximum
o Extensive PME support including
o Leaded and Lead-free standard pitch
o Lead-free fine pitch packaging only
o Industrial Temperature: -40 to +85ºC
o PCI Express Base 1.0a compliant
o x1 Link, dual-simplex, 2.5 Gbps per
o One virtual channel
o Automatic LVDS polarity reversal
o 128 byte maximum payload size
o Link CRC
o Link power management
o Flow control buffering
o PCI Express transaction queues for
o PCI v.3.0: 32 bits, up to 66 MHz
o PCI Power Management 1.1
o Internal arbiter supports up to 4
o 3.3V I/O and 5V tolerant PCI
o Message Signal Interrupt (MSI)
o Provides PCI clock output
o Four mailbox registers for messaging
o
144-ball BGA package with standard
1.0 mm pitch (13mm x 13mm)
161-ball BGA package with fine
0.65 mm pitch (10mm x 10mm)
Low power – 400 milliwatts
EEPROM configuration option with
SPI
Internal 8Kbyte shared RAM
design flexibility
D0 and D0
and D3
packaging available
direction
eight (8) outstanding TLPs
external masters; REQ#/GNT#
signals
support
VGA and ISA Enable registers for
legacy operation
Version 1.1 2007
Cold
Active
, D1, D2 and D3
Hot
Reversible Bridge in a Tiny Package
The PLX Technology PEX 8112 bridge enables designers to migrate legacy PCI bus
interfaces to the new advanced serial PCI Express. This is ideal for including
existing PCI ICs on a PCI Express™ Adapter Board, such as the new ExpressCard™
or AdvancedMC™ standards. The 13mm x 13mm standard BGA package or 10mm
x 10mm fine BGA package offerings makes the PEX 8112 bridge well suited for
applications where board real estate is at a premium. With its low power 0.15 micron
CMOS design, the PEX 8112 consumes only about 400 mW of power.
Forward and Reverse Bridging
The PEX 8112 supports forward and reverse bridging as defined by the
PCI Express-to-PCI/PCI-X Bridge Specification 1.0. In forward mode, the bridge
allows legacy PCI chips and adapters to be used with new PCI Express processor
systems. Reverse bridge operation allows conventional PCI processors and chipsets
to configure and control advanced PCI Express switches and endpoints. The reverse
PEX 8112 not only allows complete configuration of a downstream PCI Express
system from the PCI bus, but it also handles limited PCI Express root functions for
reverse interrupt and Power Management Events.
Block Diagram
The PEX 8112 is equipped with a
standard PCI Express port that
operates as a single, x1 link with a
maximum of 250 Megabytes per
second of throughput per transmit
and receive direction. The single 2.5
Gbps integrated SerDes delivers the
highest bandwidth with the lowest
possible pin count using LVDS
technology.
The PEX 8112 has a single parallel
bus segment supporting the PCI v.3.0
protocol, and a 32-bit wide parallel
data path running up to 66MHz.
The device supports internal queues
with flow control features to optimize
throughput and traffic flow.
ExpressLane™ PCI Express to PCI Bridge
PEX 8112
Figure 1. PEX 8112 Block Diagram
Configuration
PCI Master and Target Interface Logic
Registers
PCI Express Link (1 lane, 2.5 GHz)
PCI Express Transaction Layer
PCI Express Data Link Layer
(Packet Construction Logic)
PCI Bus (32-bit, 33/66 MHz)
PCI Express PHY Layer
FIFOs
j
8K Shared
RAM

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PEX 8112-AA RDK-F Summary of contents

Page 1

... PCI ICs on a PCI Express™ Adapter Board, such as the new ExpressCard™ or AdvancedMC™ standards. The 13mm x 13mm standard BGA package or 10mm x 10mm fine BGA package offerings makes the PEX 8112 bridge well suited for applications where board real estate premium. With its low power 0.15 micron CMOS design, the PEX 8112 consumes only about 400 mW of power ...

Page 2

... PCI connector (card-edge) and a standard PCI Express slot on the secondary side. The Forward Bridge RDK (Figure 5) includes the PEX 8112 with a single x1 PCI Express port (card-edge) and four PCI slots on the secondary side. Each PEX 8112RDK can be installed in a motherboard to evaluate PEX 8112 features and validate customer software. ...

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