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Intel Pentium 4 Processor on 0.13 Micron Process Datasheet
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Debug Tools Specifications
Debug Tools Specifications
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Refer to the ITP 700 Debug Port Design Guide and the appropriate platform design guidelines for
more detailed information regarding debug tools specifications (such as integration details).
8.1
Logic Analyzer Interface (LAI)
Intel is working with two logic analyzer vendors to provide logic analyzer interfaces (LAIs) for use
in debugging Pentium 4 processors on 0.13 micron process systems. Tektronix and Agilent should
be contacted to get 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 the Pentium 4 processor on 0.13 micron process systems, the LAI is
critical in providing the ability to probe and capture system bus signals. There are two sets of
considerations to keep in mind when designing a Pentium 4 processor on 0.13 micron process
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 processor. The LAI pins plug into the
socket, while the 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 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
Pentium 4 processor on 0.13 micron process 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 system bus; therefore, it is critical to
obtain electrical load models from each of the logic analyzer vendors 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.