pex8548 PLX, pex8548 Datasheet

pex8548

Manufacturer Part Number

pex8548

Description

High-performance 48-lane, 9-port Pcie Switch

Manufacturer

PLX

Datasheet

1.PEX8548.pdf (4 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

PEX8548

Manufacturer:

PLX

Quantity:

1 400

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

pex8548-AA25BI

Manufacturer:

PLX

Quantity:

1 400

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

pex8548-AA25BI

Manufacturer:

PLX

Quantity:

174

Company:

BOSTOCK HK LIMITED

Part Number:

pex8548-AA25BI

Manufacturer:

PLX

Quantity:

1 000

Company:

HardFindElectronics Ltd

Part Number:

pex8548-AA25BI

Manufacturer:

PLX

Quantity:

Company:

Meier Automation Equipment Co., Limited

Part Number:

pex8548-AA25BI

Manufacturer:

PLX

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

pex8548-AA25BI G

Manufacturer:

PLX

Quantity:

174

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

pex8548-AA25BIG

Manufacturer:

PLX

Quantity:

1 400

Company:

Meier Automation Equipment Co., Limited

Part Number:

pex8548-AA25BIG

Manufacturer:

PLX

Quantity:

20 000

Current page: 1 of 4
Download datasheet (241Kb)

Features

o 48-lane PCI Express switch

o Up to nine configurable ports

o 37.5mm x 37.5mm,

o Typical Power: 4.9 Watts

o Standard Compliant

o High Performance

o Flexible Configuration

o PCI Express Power Management

o Quality of Service (QoS)

o Reliability, Availability, Serviceability

PEX 8548 General Features

PEX 8548 Key Features

- Integrated SerDes

(x1, x2, x4, x8, x16)

736-ball PBGA package

- PCI Express Base Specification, r1.1

- Non-blocking switch fabric

- Full line rate on all ports

- Packet Cut-Thru with 110ns max

- Nine highly flexible & configurable

- Configurable with strapping pins,

- Lane and polarity reversal

- Link power management states: L0,

- Device states: D0 and D3hot

- One Virtual Channel per port

- Eight Traffic Classes per port

- Weighted Round-Robin Ingress Port

- 3 Standard Hot-Plug Controllers

- Upstream port as hot-plug client

- Transaction Layer end-to-end CRC

- Poison bit

- INTA# interrupt signal

- Fatal Error (FATAL_ERR#) signal

- PCIe baseline error reporting

- Advanced Error Reporting

- Port Status bits and GPO available

- Per port error diagnostics

- JTAG boundary scan

packet latency (x16 to x16)

ports (x1, x2, x4, x8, or x16)

EEPROM, I

L0s, L1, L2/L3 Ready, and L3

Arbitration

(legacy SERR equivalent)

• Bad DLLPs

• Bad TLPs

• CRC errors

Version 1.8 2008

C, or Host software

Multi-purpose, High Performance ExpressLane™ Switch

The ExpressLane PEX 8548 device offers PCI Express switching capability

enabling users to add scalable high bandwidth, non-blocking interconnection

to a wide variety of applications including servers, storage systems,

communications platforms, blade servers, and embedded-control

products. The PEX 8548 is well suited for fan-out, aggregation, dual-

graphics, peer-to-peer, and fabric backplane applications.

Highly Flexible Port Configurations

The PEX 8548 offers highly configurable ports. There are a maximum of 9

ports that can be configured to any legal width from x1 to x16, in any

combination to support your specific bandwidth needs. The ports can be

configured for symmetric (each port having the same lane width and traffic

load) or asymmetric (ports having different lane widths) traffic. In the event

of asymmetric traffic, the PEX 8548 features a flexible central packet

memory that allocates a memory buffer for each port as required by the

application or endpoint. This buffer allocation along with the device's

flexible packet flow control minimizes bottlenecks when the upstream and

aggregated downstream bandwidths do not match (are asymmetric). Any of

the ports can be designated as the upstream port, which can be changed

dynamically.

High Performance

The PEX 8548 architecture supports packet cut-thru with a max latency of

110ns (x16 to x16). This, combined with large packet memory (1024 byte

maximum payload size) and non-blocking internal switch architecture,

provide full line rate on all ports for performance-hungry applications such as

storage servers or storage switch fabrics.

End-to-end Packet Integrity

The PEX 8548 provides end-to-end CRC protection (ECRC) and Poison bit

support to enable designs that require end-to-end data integrity. These

features are optional in the PCI Express specification, but PLX provides

them across its entire ExpressLane switch product line.

Configuration Flexibility

The PEX 8548 provides several ways to configure its operations. The device

can be configured through strapping pins, I

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.

Interoperability

The PEX 8548 is designed to be fully compliant with the PCI Express Base

Specification r1.1. Additionally, it supports auto-negotiation, lane reversal,

and polarity reversal. The PEX 8548 also undergoes thorough

interoperability testing in PLX’s Interoperability Lab.

High-Performance 48-lane, 9-port PCIe Switch

PEX 8548

C interface, CPU configuration

Related parts for pex8548

pex8548 Summary of contents

Page 1

... The PEX 8548 provides end-to-end CRC protection (ECRC) and Poison bit support to enable designs that require end-to-end data integrity. These features are optional in the PCI Express specification, but PLX provides them across its entire ExpressLane switch product line. Configuration Flexibility The PEX 8548 provides several ways to configure its operations ...

Page 2

... SerDes Power and Signal Management The PEX 8548 supports software control of the SerDes outputs to allow optimization of power and signal strength in a system. The PLX SerDes implementation supports four levels of power – off, low, typical, and high. The SerDes block also supports loop-back modes ...

Page 3

Figure 2 shows a typical server-based design where the root complex provides a PCI Express link that needs to be expanded to a larger number of smaller ports for a variety of I/O functions. In this example, the PEX 8548 ...

Page 4

... Description PEX8548-AA25BI 48-Lane, 9-Port PCIe Switch, I-Temp, 37.5x37.5mm PEX8548-AA25BI G 48-Lane, 9-Port PCIe Switch, Pb-Free, I-Temp, 37.5x37.5mm PEX8548-AA RDK PEX 8548 Rapid Development Kit w/ x16 Edge Connector Breakout Board w/ x16 Edge Connector for additional Breakout Board-88 fan-out to two slots (x8, x8) Breakout Board w/ x16 Edge Connector for additional ...

Related keywords

pex8548 datasheet
pex8548 data sheet
pex8548 pdf datasheet
pex8548 component
pex8548 part
pex8548 distributor
pex8548 RoHS
pex8548 datasheet download