PEX8636-16U1DBBRDK PLX Technology, PEX8636-16U1DBBRDK Datasheet

PEX8636-16U1DBBRDK

Manufacturer Part Number

PEX8636-16U1DBBRDK

Description

Interface Modules & Development Tools PEX8636-16U1D Basbrd RDK(x16 Up,20 x1 Dn)

Manufacturer

PLX Technology

Datasheet

1.PEX8636-16U1DBBRDK.pdf (5 pages)

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Highlights

PEX 8636 General Features

o 36-lane, 24-port PCIe Gen2 switch

o 35 x 35mm

o Typical Power: 8.8 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 8636 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 200ns max packet

- 2KB Max Payload Size

- Ports configurable as x1, 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 Eight upstream/Host ports with

- Eight traffic classes per port

- Weighted round-robin source

♦ visionPAK

- 3 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

- JTAG AC/DC boundary scan

(backwards compatible w/ PCIe

r1.0a/1.1)

latency (x1 to x1)

pins, EEPROM, I

1+1 or N+1 failover to other upstream

ports

port arbitration

(Hot Plug Controller on every port)

• Per port error diagnostics

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 8636, PCI Express Gen 2 Switch, 36 Lanes, 24 Ports

The ExpressLane™ PEX 8636 device offers Multi-Host PCI Express

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

communications platforms. The PEX 8636 is well suited for fan-out,

aggregation, and peer-to-peer applications.

Multi-Host Architecture

The PEX 8636 employs an enhanced version of PLX’s field tested PCIe

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

single-host mode or multi-host mode with up to Eight 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 8636 architecture supports packet cut-thru with a maximum

latency of 200ns (x1 to x1). 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 8636 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 8636’s 24 Ports can be

configured to lane widths of x1,

x4, x8 or x16. Flexible buffer

allocation, along with the device's

flexible packet flow control,

maximizes

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 8636’s common

port configurations in legacy

Single-Host mode.

Page 1 of 5

throughput

for

10/8/2009, Version 1.0

Related parts for PEX8636-16U1DBBRDK

PEX8636-16U1DBBRDK Summary of contents

Page 1

... Port Status bits and GPIO available • Per port error diagnostics - JTAG AC/DC boundary scan © PLX Technology, www.plxtech.com PEX 8636, PCI Express Gen 2 Switch, 36 Lanes, 24 Ports The ExpressLane™ PEX 8636 device offers Multi-Host PCI Express switching capability enabling users to connect multiple hosts to their ...

Page 2

... CPUs) allow inter-processor communication (see Figure 3). © PLX Technology, www.plxtech.com PEX 8636, PCI Express Gen 2 Switch, 36 Lanes, 24 Ports Multi-Host & Failover Support In Multi-Host mode, PEX 8636 can be configured with up to Eight upstream host ports, each with its own dedicated downstream ports ...

Page 3

... Not only does this prevent wasted buffers and inappropriate buffer assignments, any unallocated buffers remain in the common buffer pool and can then be used for faster FC credit updates. © PLX Technology, www.plxtech.com PEX 8636, PCI Express Gen 2 Switch, 36 Lanes, 24 Ports visionPAK Another PLX exclusive, visionPAK is a debug diagnostics suite of integrated hardware and software instruments that users can use to help bring their systems to market faster ...

Page 4

... Figure 7. Multicast on PEX 8636 © PLX Technology, www.plxtech.com PEX 8636, PCI Express Gen 2 Switch, 36 Lanes, 24 Ports Host Failover in Comms Control Plane The PEX 8636 can also be utilized in applications where host failover is required ...

Page 5

... Message Signaled Interrupts (MSI) when enabled. Interrupts/messages are generated by PEX 8636 for hot plug events, doorbell interrupts, baseline error reporting, and advanced error reporting. Figure 10. PEX8636-16U1D AIC RDK Development Tools PLX offers hardware and software tools to enable rapid customer design activity. These tools consist of a hardware module (PEX 8636 RDK), hardware documentation (available at www ...

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