Device Overview

The 89HPES64H16 is a member of the IDT PRECISE™ family of

PCI Express® switching solutions. The PES64H16 is a 64-lane, 16-port

system interconnect switch optimized for PCI Express packet switching

in high-performance applications, supporting multiple simultaneous

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

communications, and embedded systems.

Features

◆ High Performance PCI Express Switch

– Sixteen maximum switch ports

• Eight main ports each of which consists of 8 SerDes

• Each x8 main port can further bifurcate to 2 x4-ports

– Sixty-four 2.5 Gbps embedded SerDes

• Supports pre-emphasis and receive equalization on per-port

basis

– Delivers 256 Gbps (32 GBps) of aggregate switching capacity

– Low-latency cut-through switch architecture

– Support for Max Payload Size up to 2048 bytes

– Supports two virtual channels and eight traffic classes

– PCI Express Base Specification Revision 1.1 compliant

◆ Flexible Architecture with Numerous Configuration Options

– Port arbitration schemes utilizing round robin algorithms

– Virtual channels arbitration based on priority

– Automatic per port link width negotiation to x8, x4, x2 or x1

– Automatic lane reversal on all ports

– Automatic polarity inversion on all lanes

– Supports locked transactions, allowing use with legacy software

– Ability to load device configuration from serial EEPROM

– Ability to control device via SMBus

◆ Highly Integrated Solution

– Requires no external components

– Incorporates on-chip internal memory for packet buffering and

queueing

– Integrates sixty-four 2.5 Gbps embedded full duplex SerDes,

8B/10B encoder/decoder (no separate transceivers needed)

◆ Reliability, Availability, and Serviceability (RAS) Features

– Redundant upstream port failover capability

– Supports optional PCI Express end-to-end CRC checking