PEX8680-16U8DBBRDK PLX [PLX Technology], PEX8680-16U8DBBRDK Datasheet

PEX8680-16U8DBBRDK

Manufacturer Part Number

PEX8680-16U8DBBRDK

Description

PCI Express Gen 2 Switch, 80 Lanes, 20 Ports

Manufacturer

PLX [PLX Technology]

Datasheet

1.PEX8680-16U8DBBRDK.pdf (5 pages)

Current page: 1 of 5
Download datasheet (357Kb)

Features

o 80-lane, 20-port PCIe Gen2 switch

o 35 x 35mm

o Typical Power: 9.0 Watts

o Standards Compliant

o High Performance

o Flexible Configuration

o Multi-Host & Fail-Over Support

o Quality of Service (QoS)

o Reliability, Availability, Serviceability

PEX 8680 General Features

PEX 8680 Key Features

- Integrated 5.0 GT/s SerDes

- PCI Express Base Specification, r2.0

- PCI Power Management Spec, r1.2

- Microsoft Vista Compliant

- Supports Access Control Services

- Dynamic link-width control

- Dynamic SerDes speed control

♦ performancePAK

- Non-blocking switch fabric

- Full line rate on all ports

- Packet Cut-Thru with 176ns max packet

- 2KB Max Payload Size

- Ports configurable as x1, x2, x4, x8, x16

- Registers configurable with strapping

- Lane and polarity reversal

- Compatible with PCIe 1.0a PM

- Configurable Non-Transparent (NT) port

- Failover with NT port

- Up to Six upstream/Host ports with 1+1

- Eight traffic classes per port

- Weighted round-robin source

♦ visionPAK

- 4 Hot Plug Ports with native HP Signals

- All ports hot plug capable thru I

- ECRC and Poison bit support

- Data Path parity

- Memory (RAM) Error Correction

- INTA# and FATAL_ERR# signals

- Advanced Error Reporting

- Port Status bits and GPIO available

- Per port error diagnostics

- JTAG AC/DC boundary scan

(backwards compatible w/ PCIe r1.0a/1.1)

latency (x16 to x16)

pins, EEPROM, I

or N+1 failover to other upstream ports

port arbitration

(Hot Plug Controller on every port)

Read Pacing (bandwidth throttling)

Multicast

Dynamic Buffer/FC Credit Pool

Per Port Performance Monitoring

SerDes Eye Capture

Error Injection and Loopback

Per port payload & header counters

, 1156-ball FCBGA package

C, or host software

PEX 8680, PCI Express Gen 2 Switch, 80 Lanes, 20 Ports

The ExpressLane

switching capability enabling users to connect multiple hosts to their

respective endpoints via scalable, high bandwidth, non-blocking

interconnection to a wide variety of applications including servers,

storage systems, and communications platforms. The PEX 8680 is

well suited for fan-out, aggregation, and peer-to-peer applications.

Multi-Host Architecture

The PEX 8680 employs an enhanced version of PLX’s field tested PEX 8648

PCIe switch architecture, which allows users to configure the device in

legacy single-host mode or multi-host mode with up to six host ports capable

of 1+1 (one active & one backup) or N+1 (N active & one backup) host

failover. This powerful architectural enhancement enables users to build

PCIe based systems to support high-availability, failover, redundant and

clustered systems.

High Performance & Low Packet Latency

The PEX 8680 architecture supports packet cut-thru with a maximum

latency of 176ns (x16 to x16). This, combined with large packet memory,

flexible common buffer/FC credit pool and non-blocking internal switch

architecture, provides full line rate on all ports for performance-hungry

applications such as servers and switch fabrics. The low latency enables

applications to achieve high throughput and performance. In addition to low

latency, the device supports a packet payload size of up to 2048 bytes,

enabling the user to achieve even higher throughput.

Data Integrity

The PEX 8680 provides end-to-end CRC (ECRC) protection and Poison bit

support to enable designs that require end-to-end data integrity. PLX also

supports data path parity and memory (RAM) error correction circuitry

throughout the internal data paths as packets pass through the switch.

Flexible Configuration

The PEX 8680’s 20 ports can be configured to lane widths of x1, x2, x4, x8,

or x16. Flexible buffer

allocation, along with the

device's flexible packet

flow control, maximizes

throughput for applications

where more traffic flows in

the downstream, rather than

upstream, direction. Any

port can be designated as the

upstream port, which can be

changed dynamically.

Figure 1 shows some of the

PEX 8680’s common port

configurations in legacy

Single-Host mode.

Page 1 of 1

PEX 8680 device offers Multi-Host PCI Express

Figure 1. Common Port Configurations

4 x8

PEX 8680

19 x4

10 x4

6 x8

5/14/2009, Version 1.1

PEX 8680

8 x8

x16

6 x4

Related parts for PEX8680-16U8DBBRDK

PEX8680-16U8DBBRDK Summary of contents

Page 1

Features PEX 8680 General Features o 80-lane, 20-port PCIe Gen2 switch - Integrated 5.0 GT/s SerDes 35mm , 1156-ball FCBGA package o Typical Power: 9.0 Watts PEX 8680 Key Features o Standards Compliant - PCI Express ...

Page 2

The PEX 8680 can also be configured in Multi-Host mode where users can choose up to six ports as host/upstream ports and assign a desired number of downstream ports to each host. In Multi-Host mode, a virtual switch is created ...

Page 3

Additionally, it supports auto-negotiation, lane reversal, and polarity reversal. Furthermore, the PEX 8680 is tested for Microsoft Vista compliance. All PLX switches undergo thorough interoperability testing in PLX’s Interoperability Lab and compliance testing at the PCI-SIG plug-fest. TM performancePAK ...

Page 4

Applications Suitable for host-centric as well as peer-to-peer traffic patterns, the PEX 8680 can be configured for a wide variety of form factors and applications. Host Centric Fan-out The PEX 8680, with its symmetric or asymmetric lane configuration capability, allows ...

Page 5

... Message Signaled Interrupts (MSI) when enabled. Interrupts/messages are generated by PEX 8680 for hot plug events, doorbell interrupts, baseline error reporting, and advanced error reporting. Figure 10. PEX8680-16U8D BB RDK Development Tools PLX offers hardware and software tools to enable rapid customer design activity. These tools consist of a hardware module (PEX 8680 RDK), hardware documentation (available at www ...

Related keywords

PEX8680-16U8DBBRDK datasheet
PEX8680-16U8DBBRDK data sheet
PEX8680-16U8DBBRDK pdf datasheet
PEX8680-16U8DBBRDK component
PEX8680-16U8DBBRDK part
PEX8680-16U8DBBRDK distributor
PEX8680-16U8DBBRDK RoHS
PEX8680-16U8DBBRDK datasheet download