E
PENTIUM II XEON PROCESSOR AT 400 AND 450 MHZ
9
12/15/98 5:14 PM 24377002.doc
L1 cache
—Integrated static RAM used to
maintain recently used information. Due to code
locality, maintaining recently used information
can significantly improve system performance
in many applications. The L1 cache is
integrated directly on the processor core.
L2 cache
—The L2 cache increases the total
cache size significantly through the use of
multiple components.
Processor substrate
—The structure on which
components are mounted inside the S.E.C.
cartridge
(with
or
attached).
Processor core
—The processor’s execution
engine.
S.E.C. cartridge
—The processor packaging
technology used for the Pentium II Xeon
processor. S.E.C. is short for “Single Edge
Contact” cartridge.
Thermal plate
—The surface used to connect a
heatsink or other thermal solution to the
processor.
without
components
Additional terms referred to in this and other related
documentation:
Slot 2
—Former nomenclature for the connector
that the S.E.C. cartridge plugs into, just as the
Pentium
Pro processor uses Socket 8. Now
called 330-Contact Slot Connector (SC330).
Retention
mechanism
—A
component designed to hold the processor in a
SC330
connector
.
SC330
—Abbreviation for the 330-Contact Slot
Connector that the S.E.C. cartridge plugs into,
just as the Pentium Pro processor uses
Socket 8.
mechanical
1.2.
References
The reader of this specification should also be
familiar with material and concepts presented in the
following documents:
CPU-ID Instruction application note (Order
Number 241618)
Pentium
II Xeon Processor I/O Buffer
Models, Quad Format(Electronic Form)
Pentium
Distribution Guidelines (Order Number 243772)
Pentium
II Xeon Processor Specification
Update(Order Number 243776)
Slot 2 Enabling Technology Vendor List
(www.developer.intel.com)
Intel Architecture Software Developer’s Manual
(Order Number 243193)
Volume
I:
Basic
Number 243190)
Volume II: Instruction Set Reference(Order
Number 243191)
Volume III: System Programming Guide
(Order Number 243192)
Slot 2 Connector Specification
VRM 8.2 DC–DC Converter Design Guidelines
(www.developer.intel.com)
VRM 8.3 DC–DC Converter Design Guidelines
(www.developer.intel.com)
Slot 2 Termination Card Design Guidelines
(Order Number 243772)
Pentium
II Xeon Processor/Intel
450NX
PCIset AGTL+ Layout Guidelines (Order
Number 243790)
100 MHz 2-Way SMP Pentium
II Xeon
Processor/Intel
440GX AGPset AGTL+ Layout
Guidelines (Order Number 243775)
Pentium
II Processor Developer’s Manual
(Order Number 243502)
Pentium
II Xeon Processor SMBus Thermal
Reference Guidelines (Order Number 243791)
II
Xeon
Processor
Power
Architecture
(Order
Most or all of this documentation can be found on
Intel’s
developer’s
world
www.developer.intel.com.
wide
web
site:
2.0.
ELECTRICAL SPECIFICATIONS
2.1.
The Pentium
II Xeon
Processor System Bus and
V
REF
Most Pentium II Xeon processor signals use a
variation
of the Pentium Pro processor GTL+
signaling technology. The Pentium II Xeon
processor differs from the Pentium II processor and