參數(shù)資料
型號： Pentium OverDrive Processor
廠商： Intel Corp.
英文描述： Pentium OverDrive Processor With MMX Technology For Pentium Processor-Based System(帶MMX技術(shù)奔騰超速轉(zhuǎn)動處理器)
中文描述： 奔騰過驅(qū)動處理器的MMX技術(shù)的Pentium處理器為基礎(chǔ)的系統(tǒng)（帶MMX公司技術(shù)奔騰超速轉(zhuǎn)動處理器）
文件頁數(shù)： 8/61頁
文件大?。?/td> 481K
代理商： PENTIUM OVERDRIVE PROCESSOR
Pentium
OverDrive
PROCESSOR WITH MMX
TECHNOLOGY
E
8
9/8/97 11:55 AM 29060701.DOC
PRELIMINARY
1.2.
Product Description
The Pentium OverDrive processor with MMX
technology comes in a 320-pin SPGA package and
is a drop-in replacement for the 75, 90, 100, 120,
133, 150 and 166-MHz Pentium processor. It comes
with on-package voltage regulation to provide the
required 2.8 volts for the core and a fan/heatsink for
a complete thermal solution. The internal core
operates at 3.0 and 2.5 times the speed of the
system bus for respective 200MHz and 166-MHz
Pentium OverDrive processor with MMX technology.
For dual socket systems the original processor must
be removed and the Pentium OverDrive processor
with MMX technology should be installed in the
secondary socket since it does not support dual
processing.
1.3.
Purpose of this Document
This document describes the system architecture
and physical environment of Pentium OverDrive
processor with MMX technology. It also outlines
differences between the originally installed Pentium
processor and the Pentium OverDrive processor with
MMX technology.
1.4.
Compatibility Note
In this document some register bits are shown as
“Intel Reserved” (RES) and some pins are marked as
“No Connects” (NC) or “Reserved” (RES). When
reserved bits are called out, treat them as fully
undefined. This is essential for software compatibility
with current and future processors. When a pin is
marked as a “NC” or “RES” it is important to not
connect any other signals to such pins to ensure
proper
operation.
Intel
following the guidelines below:
strongly
recommends
1.
Do not depend on the states of any undefined
bits when testing the values of defined register.
Mask them out when testing.
Do not depend on the states of any undefined
bits when storing them to memory or another
register.
Do not depend on the ability to retain information
written into any undefined bits.
When loading registers always load the
undefined bits as zeros.
Never connect signals to device pins marked
“NC” or “RES”.
INC
pins are Internal No-Connects. This means
that the pin is not connected to the processor
internally. For example; the CPUTYP signal pin
on the Pentium OverDrive processor with MMX
technology is internally not connected to the
package pin. The core is internally tied to V
SS
.
The pin on the package is defined as INC. Any
external connections to the package pin will not
affect the processor core because the core is
physically disconnected from the package pin.
2.
3.
4.
5.
6.
2.0.
PINOUT AND PIN DESCRIPTION
2.1.
Pinout
The Pentium OverDrive processor with MMX
technology has a 320-pin SPGA pinout and is
designed to be installed into Socket 5 or Socket 7.
See Section 6.3 for more details on Socket 5 and
Socket 7. Figure 4 and Figure 5 are illustrations of
each side of the SPGA package.
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