89H64H16G2ZBBL中文资料瑞萨数据手册PDF规格书

Device Overview

The 89HPES64H16G2 is a member of the IDT PRECISE™ family of

PCI Express® switching solutions. The PES64H16G2 is a 64-lane, 16-

port system interconnect switch optimized for PCI Express Gen2 packet

switching in high-performance applications, supporting multiple simultaneous

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

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

I/O based systems with inter-domain communication.

特性 Features

 High Performance Non-Blocking Switch Architecture

– 64-lane 16-port PCIe switch

• Eight x8 ports switch ports each of which can bifurcate to two

x4 ports (total of sixteen x4 ports)

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

Gen1 operation

– Delivers up to 64 GBps (512 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

– Compatible with IDT 89HPES64H16 PCIe Gen1 switch

 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