Introduction; System Overview - Intel IXP28XX Manual

Introduction

Note: The guidelines recommended in this document are based on simulation work completed by Intel.
Note: General information regarding certain artwork in this document. Due to differences in output
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Hardware Design Guide
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The purpose of this manual is to accelerate the development of Intel
Processor hardware designs. The manual provides the hardware developer general design
guidelines and includes specific design implementations used on the IXDP2800 Advanced
Development Platform.
These guidelines have been developed to ensure maximum flexibility for board designers and to
reduce board-related problems. The design information in this document is in two categories:
•
Design Recommendations, based on Intel's simulations and lab debugging experience to
date, and are strongly recommended (or necessary) to meet timing and signal quality
specifications.
•
Design Considerations or suggestions, based on the development platforms designed by Intel.
They should be used as examples, but may not be applicable to particular designs.
This work is ongoing, and recommendations are subject to change.
devices, some figures may display inconsistently. For example, viewing a figure on a computer
screen and producing hardcopy to a printer can result in the screen providing finer resolution than
the printer.

System Overview

The IXP28XX network processors enable fast deployment of complete content processing by
providing unlimited programming flexibility, code re-use, and high-performance processing. These
network processors support a wide variety of WAN and LAN applications that require a broad
range of speeds, currently ranging from OC-3 through OC-192. High performance and scalability
is achieved through an innovative Microengine architecture that includes a multi-threaded
distribution cache architecture that enables pipeline features in software.
In addition to the standard feature set available with the Intel® IXP2800 Network Processor, the
Intel® IXP2850 Network Processor integrates functionality for secure network traffic at
10 Gbytes/sec. This enables the up-front design of secure network equipment and results in lower
power consumption and more efficient use of space on the printed circuit board.
Table 1 summarizes the product features.
IXP2800 Network Processor and Intel® IXP2850 Network Processor internal hardware, showing
the major internal blocks.
IXP28XX Network Processor
®
IXP28XX Network
Figure 1 provides a functional overview of the Intel®
Introduction
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