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PREFACE
The
Inte1386"1
DX
microprocessor
is
a high-performance 32-bit microprocessor. This
manual provides complete hardware reference information for Inte1386
DX
micropro-
cessor system designs.
It
is
written for system engineers and hardware designers who
understand the operating principles of microprocessors and microcomputer systems.
Readers of this manual should be familiar with the information in the
Introduction to the
80386 (Intel publication Order Number 231252).
RELATED
PUBLICATIONS
In this manual, the Inte1386
DX
microprocessor
is
presented from a hardware perspec-
tive. Information on the software architecture, instruction set, and programming of the
Intel386 DX microprocessor can be found in these related Intel publications:
•
386™
DX
Microprocessor Programmer's Reference Manual, Order Number 230985
• 80386 System Software Writer's Guide, Order Number
231499
•
386"1
DX
Microprocessor Data Sheet, Order Number 231630
The
386™
DX
Microprocessor Data Sheet contains device specifications for the
Inte1386
DX
microprocessor. Always consult the most recent version of this publication
for specific Intel386
DX
microprocessor parameter values.
Detailed device specifications on Inte1386
DX
microprocessor family components can be
found in the following publications:
•
38T
M
DX
Math Coprocessor Data Sheet, Order Number
240448
• 82380 Data Sheet, Order Number
290128
• 82385 Data Sheet, Order Number
290143
• 82310/11 Data Sheet, Order Number 290167
• 82350 Data Sheet, Order Number
290220
• 82596DX Data Sheet, Order Number
290219
Together with thelnteI386'"
DX
Microprocessor Hardware Reference Manual, these pub-
lications provide a complete description of the Intel386
DX
microprocessor system for
hardware designers, software engineers, and all users of Intel386
DX
microprocessor
systems.
The Inte1386
DX
microprocessor
is
object-code compatible with 3 other processors: the
Intel486
TA',
the Intel386 SX and the
376"1
microprocessors.
The Intel486
DX
processor integrates cache memory, floating point hardware and mem-
ory management on-chip while retaining binary compatibility with previous members of
the
86
architectural family. Related documentation includes:
•
i486T>1
Microprocessor Data Sheet, Order Number 240440
• i486
"I
Microprocessor Programmer's Reference Manual, Order Number 240486
iii