Intel III Xeon 550 MHz 80525KY5501M User Manual
Product codes
80525KY5501M
Pentium
®
III Xeon™ Processor at 500 and 550 MHz
Datasheet
79
debug interface. Due to the nature of an ITP, the processor may be controlled without affecting any
high speed signals. This ensures that the system can operate at full speed with an ITP attached.
Intel will use an ITP for internal debug and system validation and recommends that all
Pentium
high speed signals. This ensures that the system can operate at full speed with an ITP attached.
Intel will use an ITP for internal debug and system validation and recommends that all
Pentium
III
Xeon processor-based system designs include a debug port. This is especially
important if Intel assistance is required in debugging a system-processor interrelationship issue.
8.1.1
Primary Function
The primary function of an ITP is to provide a control and query interface for one or more
processors. With an ITP, one can control program execution and have the ability to access
processor registers, system memory and I/O. Thus, one can start and stop program execution using
a variety of breakpoints, single-step the program at the assembly code level, as well as read and
write registers, memory and I/O. The on-chip debug features will be controlled from a Windows
NT 4.0 software application running on a Pentium or P6 family processor-based PC with a PCI
card slot. (See
processors. With an ITP, one can control program execution and have the ability to access
processor registers, system memory and I/O. Thus, one can start and stop program execution using
a variety of breakpoints, single-step the program at the assembly code level, as well as read and
write registers, memory and I/O. The on-chip debug features will be controlled from a Windows
NT 4.0 software application running on a Pentium or P6 family processor-based PC with a PCI
card slot. (See
.)
8.1.2
Debug Port Connector Description
An ITP will connect to the system through the debug port. Recommended connectors, to mate an
ITP cable with the debug port on the board, are available in either a vertical or right-angle
configuration. Both configurations fit into the same board footprint. The connectors are
manufactured by AMP Incorporated and are in the AMPMODU System 50 line. Following are the
AMP part numbers for the two connectors:
ITP cable with the debug port on the board, are available in either a vertical or right-angle
configuration. Both configurations fit into the same board footprint. The connectors are
manufactured by AMP Incorporated and are in the AMPMODU System 50 line. Following are the
AMP part numbers for the two connectors:
•
Amp 30-pin shrouded vertical header: 104068-3
•
Amp 30-pin shrouded right-angle header: 104069-5
Note:
These are high density through hole connectors with pins on 0.050 in. by 0.100 in. centers. Do not
confuse these with the more common 0.100 in. by 0.100 in. center headers.
confuse these with the more common 0.100 in. by 0.100 in. center headers.
The debug port must be mounted on the system baseboard; the processor does not contain a
debug port.
Figure 40. Hardware Components of an ITP
PCI Add-In Card
Plugs in to your host PC (12.5 in.)
Debug Port
Connector
Connector
Connects to Debug
Port on target board
Port on target board
2m Cabl
2 in. Cabl
Buffer Board