PEX8547-AA25BCG PLX Technology, Inc., PEX8547-AA25BCG Datasheet
PEX8547-AA25BCG
Manufacturer Part Number
PEX8547-AA25BCG
Description
Manufacturer
PLX Technology, Inc.
Datasheet
1.PEX8547-AA25BCG.pdf
(3 pages)
Specifications of PEX8547-AA25BCG
Case
BGA
Dc
07+
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Features
.
PEX 8547 General Features
o 48-lane PCI Express switch
o Three configurable ports
o Integrated SerDes
o 37.5mm x 37.5mm, 736 pin PBGA package
o Typical Power: 4.9 Watts
PEX 8547 Key Features
o Standards Compliant
o High Performance
o Flexible Configuration
o PCI Express Power Management
o INTA and FATAL ERROR signal support
o Port Status bits and GPO available
o Quality of Service (QoS)
o Reliability, Availability, Serviceability
(x1, x2, x4, x8, x16)
- PCI Express Base Specification, r1.1
- Packet Cut Through
- Packet Latency of 110ns (x16 to x16)
- Non-blocking Switch Fabric
- Full Line rate
- Three configurable ports
- Flexible lane width/port x1, x2, x4, x8, 16
- Configurable with strapping pins,
- Lane and polarity reversal
- Link power management states: L0, L0s,
- Device states: D0 and D3hot
- Eight Traffic Classes per port
- Round Robin and Weighted RR port
(RAS)
- Error reporting in addition to Advanced
- Per port performance monitoring
EEPROM, Host software or I
L1, L2/L3 Ready, and L3
arbitration
Error Reporting support of PCI Express
• Average packet size, number of
• JTAG boundary scan
packets, CRC errors
Version 1.4 2007
2
C
Multi-Purpose, Feature Rich PCI Express* ExpressLane™ Switch
The ExpressLane PEX 8547 device offers PCI Express switching
capability conforming to the latest revision of the PCI Express Base
specification (r1.1). This device enables users to add scalable high
bandwidth, non-blocking interconnects to high-end graphics
applications. The PEX 8547 is designed to support graphics or data
aggregation while supporting peer-to-peer traffic for high resolution
graphics applications.
High Performance
The ExpressLane PEX 8547 architecture supports packet cut-through
with a latency of 110ns (x16 to x16). This, combined with large
packet memory (256 to 1024 byte maximum payload size) and non-
blocking internal switch architecture, provide full line rate on its ports
for performance hungry applications such as storage servers or storage
switch fabrics.
Low Packet Latency
The PEX 8547 supports packet cut-through with a latency of 110ns
between symmetric (x16) ingress and egress ports. The low latency
enables many applications to achieve high throughput and
performance. In addition to low latency, the device supports a packet
payload size of up to 1024 bytes, enabling the user to achieve even
higher throughput.
Low Power with Granular SerDes Control
The ExpressLane PEX 8547 provides low power capability that is
fully compliant with the PCI Express power management
specification.
Interoperability
The ExpressLane PEX 8547 is designed to be fully compliant with the
PCI-SIG specification. Additionally, it supports auto-negotiation, lane
reversal, and polarity reversal.
Configuration Flexibility
The ExpressLane PEX 8547 provides several ways to configure its
operations. The device can be configured through strapping pins, I
interface, CPU configuration cycles, or an optional serial EEPROM.
This allows for easy debug during the development phase,
performance monitoring during the operation phase, and driver or
software upgrade.
PCI Express™ Switch for Graphics Fan-Out
PLX Confidential
PEX 8547
2
C
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PEX8547-AA25BCG Summary of contents
Page 1
Version 1.4 2007 . Features PEX 8547 General Features o 48-lane PCI Express switch o Three configurable ports (x1, x2, x4, x8, x16) o Integrated SerDes o 37.5mm x 37.5mm, 736 pin PBGA package o Typical Power: 4.9 Watts PEX ...
Page 2
Fully Compliant Power Management For applications that require power management, the ExpressLane PEX 8547 device supports both link (L0, L0s, L1, L2/L3 Ready, and L3) and device (D0 and D3hot) power management states, in compliance with the PCI Express power ...
Page 3
... 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. PEX8547-SIL-PB-P1-1.4 The PEX 8547 RDK board can be installed on a motherboard or used as a riser card. The PEX 8547 RDK can be used to test and validate customer software ...