89HPES16T7中文资料

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元器件交易网

16-Lane 7-Port

PCI Express® Switch

89HPES16T7Product Brief

Device Overview

The 89HPES16T7 is a member of the IDT PRECISE family of PCIExpress switching solutions. The PES16T7 is a 16-lane, 7-port periph-eral chip that performs PCI Express Packet switching with a feature setoptimized for high performance applications such as servers, storageand communications/networking. It provides connectivity and switchingfunctions between a PCI Express upstream port and up to seven down-stream ports and supports switching between downstream ports.

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Features

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High Performance PCI Express Switch–Sixteen 2.5 Gbps PCI Express lanes–Seven switch ports

–Upstream port configurable up to x8

–Two downstream ports configurable up to x4, four downstreamports are x1

–Low-latency cut-through switch architecture–Support for Max Payload Sizes up to 2048 bytes–One virtual channel–Eight traffic classes

–PCI Express Base Specification Revision 1.1 compliantFlexible Architecture with Numerous Configuration Options–Automatic per port link width negotiation to x8, x4, x2 or x1–Automatic lane reversal on all ports–Automatic polarity inversion on all lanes

–Ability to load device configuration from serial EEPROM

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Legacy Support

–PCI compatible INTx emulation–Bus locking

Highly Integrated Solution

–Requires no external components

–Incorporates on-chip internal memory for packet buffering andqueueing

–Integrates sixteen 2.5 Gbps embedded SerDes with 8B/10Bencoder/decoder (no separate transceivers needed)

Reliability, Availability, and Serviceability (RAS) Features–Supports ECRC and Advanced Error Reporting

–Internal end-to-end parity protection on all TLPs ensures dataintegrity even in systems that do not implement end-to-endCRC (ECRC)

–Supports PCI Express Native Hot-Plug, Hot-Swap capable I/O–Compatible with Hot-Plug I/O expanders used on PC andserver motherboardsPower Management

–Utilizes advanced low-power design techniques to achieve lowtypical power consumption

–Supports PCI Power Management Interface specification (PCI-PM 1.1)

Supports device power management states: D0, D3hot andD3cold

–Unused SerDes are disabled

Block Diagram

7-Port Switch Core / 16 PCI Express Lanes

Frame Buffer

Route Table

PortArbitration

Scheduler

Transaction LayerData Link Layer

TLDLL

Mux/Demux

PhyLogicalLayer

TLDLL

Mux/Demux

PhyLogicalLayer

Multiplexer / Demultiplexer

PhyLogicalLayer

Multiplexer / Demultiplexer

PhyLogicalLayer

Multiplexer / Demultiplexer

PhyLogicalLayer

SerDesSerDesSerDesSerDesSerDesSerDesSerDesSerDesSerDesSerDesSerDesSerDesSerDesSerDes

(Port 0)(Port 1)(Port 2)(Port 3)(Port 6)

Figure 1 Internal Block Diagram

IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.

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元器件交易网

IDT 89HPES16T7 Product Brief

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Testability and Debug Features

–Ability to read and write any internal register via the SMBusTwelve General Purpose Input/Output pins

–Each pin may be individually configured as an input or output–Each pin may be individually configured as an interrupt input–Some pins have selectable alternate functions

Packaged in a 25mm x 25mm 320-ball BGA with 1 mm ball spacing

ProcessorProcessor

North

Bridge

MemoryMemory

South

Bridge

Product Description

Utilizing standard PCI Express interconnect, the PES16T7 providesthe most efficient fan-out solution for applications requiring highthroughput, low latency, and simple board layout with a minimumnumber of board layers. It provides 8 GBps (64 Gbps) of aggregated,full-duplex switching capacity through 16 integrated serial lanes, usingproven and robust IDT technology. Each lane provides 2.5 Gbps ofbandwidth in both directions and is fully compliant with PCI ExpressBase specification 1.1.

The PES16T7 is based on a flexible and efficient layered architec-ture. The PCI Express layers consist of SerDes, Physical, Data Link,and Transaction layers. The PES16T7 can operate either as a store andforward switch or a cut-through switch and is designed to switch memoryand I/O transactions. It supports eight Traffic Classes (TCs) and oneVirtual Channel (VC) with sophisticated resource management to allowefficient switching for applications requiring additional narrow portconnectivity and also some high-end connectivity.

PES16T7

x4x4x1

I/O

I/OSATA

PCI ExpressSlots

Figure 2 I/O Expansion Application

CORPORATE HEADQUARTERS6024 Silver Creek Valley RoadSan Jose, CA 95138

for SALES:

800-345-7015 or 408-284-8200fax:

for Tech Support:email: ssdhelp@phone: 408-284-8208

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