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Datasheet

Debug Tools Specifications

Refer to the ITP700 Debug Port Design Guide for information regarding debug tools

specifications. The ITP700 Debug Port Design Guide is located on http://developer.intel.com.

8.1

Logic Analyzer Interface (LAI)

Intel is working with two logic analyzer vendors to provide logic analyzer interfaces (LAIs) for use

in debugging Celeron D processor systems. Tektronix and Agilent should be contacted to obtain

specific information about their logic analyzer interfaces. The following information is general in

nature. Specific information must be obtained from the logic analyzer vendor.

Due to the complexity of Celeron D processor systems, the LAI is critical in providing the ability to

probe and capture FSB signals. There are two sets of considerations to keep in mind when

designing a Celeron D processor system that can make use of an LAI: mechanical and electrical.

8.1.1

Mechanical Considerations

The LAI is installed between the processor socket and the Celeron D processor. The LAI pins plug

into the socket, while the Celeron D processor pins plug into a socket on the LAI. Cabling that is

part of the LAI egresses the system to allow an electrical connection between the Celeron D

processor and a logic analyzer. The maximum volume occupied by the LAI, known as the keepout

volume, as well as the cable egress restrictions, should be obtained from the logic analyzer vendor.

System designers must make sure that the keepout volume remains unobstructed inside the system.

Note that it is possible that the keepout volume reserved for the LAI may differ from the space

normally occupied by the Celeron D processor heatsink. If this is the case, the logic analyzer

vendor will provide a cooling solution as part of the LAI.

8.1.2

Electrical Considerations

The LAI will also affect the electrical performance of the FSB; therefore, it is critical to obtain

electrical load models from each of the logic analyzers to be able to run system level simulations to

prove that their tool will work in the system. Contact the logic analyzer vendor for electrical

specifications and load models for the LAI solution they provide.

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