Intel X5460 AT80574KJ087N Data Sheet

Product codes
AT80574KJ087N
Page of 118
117
Debug Tools Specifications
9
Debug Tools Specifications
Please refer to the appropriate platform design guidelines for information regarding 
debug tool specifications. 
 provides collateral details.
9.1
Debug Port System Requirements
The Quad-Core Intel® Xeon® Processor 5400 Series debug port is the command and 
control interface for the In-Target Probe (ITP) debugger. The ITP enables run-time 
control of the processors for system debug. The debug port, which is connected to the 
FSB, is a combination of the system, JTAG and execution signals. There are several 
mechanical, electrical and functional constraints on the debug port that must be 
followed. The mechanical constraint requires the debug port connector to be installed in 
the system with adequate physical clearance. Electrical constraints exist due to the 
mixed high and low speed signals of the debug port for the processor. While the JTAG 
signals operate at a maximum of 75 MHz, the execution signals operate at the common 
clock FSB frequency. The functional constraint requires the debug port to use the JTAG 
system via a handshake and multiplexing scheme.
In general, the information in this chapter may be used as a basis for including all run-
control tools in Quad-Core Intel® Xeon® Processor 5400 Series-based system designs 
including tools from vendors other than Intel.
Note:
The debug port and JTAG signal chain must be designed into the processor board to 
utilize the XDP for debug purposes except for interposer solutions.
9.2
Target System Implementation
9.2.1
System Implementation
Specific connectivity and layout guidelines for the Debug Port are provided in the 
appropriate platform design guidelines.
9.3
Logic Analyzer Interface (LAI)
Intel is working with two logic analyzer vendors to provide logic analyzer interfaces 
(LAIs) for use in debugging Quad-Core Intel® Xeon® Processor 5400 Series 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 Quad-Core Intel® Xeon® Processor 5400 Series-based 
multiprocessor 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 
Quad-Core Intel® Xeon® Processor 5400 Series-based system that can make use of 
an LAI: mechanical and electrical.