89H32H8G2ZCBL datasheet(1/41 Pages) RENESAS

Part #	89H32H8G2ZCBL

Description	32-Lane 8-Port PCIe® Gen2 System Interconnect Switch

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Manufacturer	RENESAS [Renesas Technology Corp]

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November 28, 2011

®

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

Device Overview

The 89HPES32H8G2 is a member of the IDT PRECISE™ family of

PCI Express® switching solutions. The PES32H8G2 is a 32-lane, 8-port

system interconnect switch optimized for PCI Express Gen2 packet

switching in high-performance applications, supporting multiple simulta-

neous peer-to-peer traffic flows. Target applications include servers,

storage, communications, embedded systems, and multi-host or intelli-

gent I/O based systems with inter-domain communication.

Features

 High Performance Non-Blocking Switch Architecture

–

32-lane 8-port PCIe switch

• Four x8 switch ports each of which can bifurcate to two x4

ports (total of eight x4 ports)

–

Integrated SerDes supports 5.0 GT/s Gen2 and 2.5 GT/s

Gen1 operation

–

Delivers up to 32 GBps (256 Gbps) of switching capacity

–

Supports 128 Bytes to 2 KB maximum payload size

–

Low latency cut-through architecture

–

Supports one virtual channel and eight traffic classes

 Standards and Compatibility

–

PCI Express Base Specification 2.0 compliant

–

Implements the following optional PCI Express features

• Advanced Error Reporting (AER) on all ports

• End-to-End CRC (ECRC)

• Access Control Services (ACS)

• Power Budgeting Enhanced Capability

• Device Serial Number Enhanced Capability

• Sub-System ID and Sub-System Vendor ID Capability

• Internal Error Reporting ECN

• Multicast ECN

• VGA and ISA enable

• L0s and L1 ASPM

•ARI ECN

 Port Configurability

–

x4 and x8 ports

• Ability to merge adjacent x4 ports to create a x8 port

–

Automatic per port link width negotiation

(x8

→ x4 → x2 → x1)

–

Crosslink support

–

Automatic lane reversal

–

Autonomous and software managed link width and speed

control

–

Per lane SerDes configuration

• De-emphasis

• Receive equalization

• Drive strength

 Switch Partitioning

–

IDT proprietary feature that creates logically independent

switches in the device

–

Supports up to 8 fully independent switch partitions

–

Configurable downstream port device numbering

–

Supports dynamic reconfiguration of switch partitions

• Dynamic port reconfiguration (downstream, and upstream)

• Dynamic migration of ports between partitions

• Movable upstream port within and between switch partitions

 Initialization / Configuration

–

Supports Root (BIOS, OS, or driver), Serial EEPROM, or

SMBus switch initialization

–

Common switch configurations are supported with pin strap-

ping (no external components)

–

Supports in-system Serial EEPROM initialization/program-

ming

 Quality of Service (QoS)

–

Port arbitration

• Round robin

–

Request metering

• IDT proprietary feature that balances bandwidth among

switch ports for maximum system throughput

–

High performance switch core architecture

• Combined Input Output Queued (CIOQ) switch architecture

with large buffers

 Multicast

–

Compliant to the PCI-SIG multicast ECN

–

Supports arbitrary multicasting of Posted transactions

–

Supports 64 multicast groups

–

Multicast overlay mechanism support

–

ECRC regeneration support

 Clocking

–

Supports 100 MHz and 125 MHz reference clock frequencies

–

Flexible port clocking modes

• Common clock

• Non-common clock

• Local port clock with SSC and port reference clock input

 Hot-Plug and Hot Swap

–

Hot-plug controller on all ports

• Hot-plug supported on all downstream switch ports

–

All ports support hot-plug using low-cost external I2C I/O

expanders

89HPES32H8G2

Data Sheet

32-Lane 8-Port PCIe® Gen2

System Interconnect Switch

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