IXP1200 Network Processor Family ATM OC-3/12/Ethernet IP Router Example Design

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Figure 5. Developer’s Workbench - IX Bus Device Status Window

1.4.2Hardware

The README.txt file contained in the vxworks subdirectory of the project source code describes how to build and run the project on hardware using VxWorks®. While the project runs in simulation mode by default, some simple changes to the project configuration must be made before it will run on hardware. To run on hardware, Tornado 2.1® as well as the IXP1200 Developer’s Workbench 2.01 need to be installed on the host system. Further details may be found in the README.txt file in the vxworks subdirectory.

2.0System Overview

2.1System Programming Model

Figure 6 shows the system hardware, as seen by the software. Data flows from the receive ports on the left, through the IXP12xx’s RFIFO and its various hardware resources, and then to the TFIFO and out the transmit ports on the right. (While logically independent, receive and transmit ports for each interface are implemented in the same physical hardware package. The figure uses a single block arrow to illustrate 1-4 ATM ports, and 1-8 Ethernet ports, depending on the configuration.)

Application Note

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Modified on: 3/20/02,

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Intel IXP1200 manual System Overview, System Programming Model, Hardware