參數(shù)資料
型號(hào)： 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(dòng)處理器)
中文描述： 奔騰過驅(qū)動(dòng)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(dòng)處理器）
文件頁(yè)數(shù)： 30/61頁(yè)
文件大?。?/td> 481K
代理商： PENTIUM OVERDRIVE PROCESSOR
Pentium
OverDrive
PROCESSOR WITH MMX
TECHNOLOGY
E
30
9/8/97 11:55 AM 29060701.DOC
PRELIMINARY
FAN
HEATSINK
CERAMIC PGA or SPGA
290607-6
Figure 6. Pentium
OverDrive
Processor with MMX Technology with Fan/Heatsink
3.6.
On-Package Fan/Heatsink
The on-package fan/heatsink included with the
Pentium OverDrive processor with MMX technology
requires different stress ratings than the original
Pentium processor. The fan is a detachable unit,
and the storage temperature is stated separately
in Table 12. Operation of the Pentium OverDrive
processor with MMX technology is defined at T
A
=
10
°
C to 45
°
C. The fan/heatsink is shown in
Figure 6.
3.7.
On-Package Voltage Regulator
The Pentium OverDrive processor with MMX
technology has an on-package voltage regulator to
supply 2.8 volts to the processor core. This allows
the Pentium OverDrive processor with MMX
technology to function in a 3.3 volt only system.
3.8.
Cache Support
The Pentium OverDrive processor with MMX
technology has an enhanced internal cache (2x16KB
Total, 4 way set-associative Code and Data caches,
each with improved TLBs) and will support the L2
caches supported by the Pentium processor (75-
200). The Pentium OverDrive processor with MMX
technology supports the Intel 82430 chipsets.
Chipsets with 5V signal levels, 82497/82492
cache controller, and the 82498/82493 cache
controller are not supported by the Pentium
OverDrive processor with MMX technology.
3.9.
Code Prefetch Queue and
Branch Target Buffers
Code should not be written to rely on the specific
code prefetch queue or branch target buffer
mechanism of a particular processor. With each new
generation
and
family
mechanisms are subject to change.
of
processors,
these
3.10.
I/O Buffers
The Pentium OverDrive processor with MMX
technology
buffer
models
specifications for the buffer model for the respective
original Pentium processor. The circuit topology is
the same and the ranges of values in the Pentium
OverDrive processor with MMX technology model
are within the original Pentium processor ranges. The
buffer models used by the Pentium OverDrive
processor with MMX technology accurately model
flight time and signal quality.
comply
with
the
3.11.
Test Register Access
The Pentium OverDrive processor with MMX
technology have test registers which allow testing of
different areas of the processor. These test registers
are called Model Specific Registers (MSR). These
MSR’s are accessed using the RDMSR and
WRMSR instructions.
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