PREFACE
The Intel 80386
is
a high-performance 32-bit microprocessor. This manual provides complete
hardware reference information for 80386 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 80386
is
presented from a hardware perspective. Information
on
the
software architecture, instruction set, and programming of the 80386 can
be
found in these
related Intel publications:
• 80386 Programmer's Reference Manual, Order Number 230985
• 80386
System
Software Writer's Guide, Order Number 231499
• 80386 Data Sheet, Order Number 231630
The 80386 Data Sheet contains device specifications for the 80386. Always consult the most
recent version
of
this publication for specific 80386 parameter values.
Detailed device specifications
on
80386 family components can be found
in
the following
publications:
• 80387 Data Sheet, Order Number 231920
• 82380 Data Sheet, Order Number 290128
Together with the 80386 Hardware Reference Manual, these publications provide a complete
description
of
the 80386 system for hardware designers, software engineers, and all users of
80386 systems.
ORGANIZATION OF THIS MANUAL
The information
in
this manual
is
divided into
12
chapters and three appendices. The material
begins with a description of the 80386 microprocessor and continues with discussions
of
hardware design information needed to implement 80386 system designs.
• Chapter
1,
"System Overview." This chapter provides an overview of the 80386 and its
supporting devices.
• Chapter
2,
"Internal Architecture." This chapter describes the internal architecture
of
the 80386.
• Chapter
3,
"Local Bus Interface." This chapter discusses the 80386 local bus interface.
This chapter includes 80386 signal descriptions, memory and
I/O
organization, and local
bus interface guidelines.
iii
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