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Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
February 2007 HDD
Document Number: 305261; Revision: 004 15
System Architecture—Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
2.0 System Architecture
2.1 System Architecture Description
The Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors are multi-
function processors that integrate the Intel XScale
®
Processor (ARM* architecture
compliant) with highly integrated peripheral controllers and intelligent network
processor engines.
The processor is a highly integrated design, manufactured with Intel’s 0.18-micron
production semiconductor process technology. This process technology — along with
numerous, dedicated-function peripheral interfaces and many features with the Intel
XScale processor — addresses the needs of many system applications and helps reduce
system costs. The processors can be configured to meet many system application and
implementation needs.
Figure 2 illustrates one of many applications for which the IXP45X/IXP46X network
processors can be implemented. For detailed functional descriptions, see the Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors Developer’s Manual.
2.2 System Memory Map
For a complete memory map and register description of each individual module, refer
to the Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
Developer’s Manual.