參數(shù)資料
型號(hào)： pentium II xeon processor
廠商： Intel Corp.
英文描述： pentium II xeon processor at 400 and 450 MHZ(工作頻率400和450兆赫茲奔II處理器)
中文描述： 奔騰II至強(qiáng)處理器400和450兆赫（工作頻率400和450兆赫茲奔二處理器）
文件頁數(shù)： 79/97頁
文件大小： 978K
代理商： PENTIUM II XEON PROCESSOR
E
PENTIUM II XEON PROCESSOR AT 400 AND 450 MHZ
79
12/15/98 5:14 PM 24377002.doc
on a host PC. The hardware consists of a PCI
board in the host PC connected to the signals
which make up the Pentium II Xeon processor’s
debug interface. Due to the nature of the ITP, the
processor may be controlled without affecting any
high speed signals. This ensures that the system
can operate at full speed with the ITP attached.
Intel will use an ITP for internal debug and
system validation and recommends that all
Pentium II 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
Pentium Pro processor-based PC with a PCI card
slot. (See Figure 34.)
8.1.2.
DEBUG PORT CONNECTOR
DESCRIPTION
The ITP will connect to the system through the
debug port. Recommended connectors, to mate
the 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
104068-3
Amp 30-pin shrouded right-angle header:
104069-5
30-pin
shrouded
vertical
header:
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.
The debug port must be mounted on the
system motherboard; the processor does
not contain a debug port.
8.1.3.
DEBUG PORT SIGNAL
DESCRIPTIONS
Table 43 describes the debug port signals and
provides the pin assignment.
PCI Add-In Card
Plugs in to your host PC (12.5 in.)
Debug Port
Connector
Connects to Debug
Port on target board
2m Cable
2 in. Cable
Buffer Board
3770-34
Figure 34. Hardware Components of the ITP
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