TABLE OF CONTENTS

 

 

CHAPTER 11

 

Page

PHYSICAL DESIGN AND DEBUGGING

 

 

11.1 GENERAL DESIGN GUIDELINES

11-1

11.2 POWER DISSIPATION AND DISTRIBUTION

11-1

11.2.1

Power and Ground Planes

11-2

11.3 DECOUPLING CAPACITORS

11-4

11.4 HIGH FREQUENCY DESIGN CONSIDERATIONS

11-8

11.4.1

Transmission Line Effects

11-9

11.4.1.1 TRANSMISSION LINE TYPES

11-10

11.4.1.1.1

Micro Strip Lines

11-10

11.4.1.1.2

Strip Lines

,................................ 11-11

11.4.2 Impedance Mismatch

11-12

11.4.2.1 IMPEDANCE MATCHING

11-16

11.4.2.1.1

Need for Termination

11-17

11.4.2.1.2 Series Termination

11-17

11.4.2.1.3

Parallel Terminated Lines

11-18

11.4.2.1.4 Thevenins Equivalent Termination

11-19

11.4.2.1.5 A.C. Termination

11-20

11.4.2.1.6 Active Termination

11-21

11.4.2.1.7 Impedance Matching Example

11-22

11.4.2.2 DAISY CHAINING

11-23

11.4.2.3 90-DEGREE ANGLES

11-24

11.4.2.4 VIAS (FEED THROUGH CONNECTIONS)

11-24

11.4.3

Interference

11-24

11.4.3.1 ELECTROMAGNETIC INTERFERENCE (CROSS-TALK)

11-25

11.4.3.2 MINIMIZING CROSS-TALK

11-25

11.4.3.3 ELECTROSTATIC INTERFERENCE

11-28

11.4.4 Propagation Delay

11-28

11.5 LATCH-UP

11-29

11.6 CLOCK CONSIDERATIONS

11-29

11.6.1

Requirements

11-29

11.6.2 Routing

11-30

11.7 THERMAL CHARACTERISTICS

11-32

11.8 DEBUGGING CONSIDERATIONS

11-33

11.8.1

Hardware Debugging Features

11-33

11.8.2

Bus Interface

11-34

11.8.3 Simplest Diagnostic Program

11-35

11.8.4 Building and Debugging a System Incrementally

11-36

11.8.5 Other Simple Diagnostic Software

11-37

11.8.6

Debugging Hints

'-'.:................:

11-39

CHAPTER 12

 

 

TEST CAPABILITIES

 

 

12.1 INTERNAL TESTS

12-1

12.1.1

Automatic Self-Test

12-1

12.1.2 Translation Lookaside Buffer Tests

12-2

12.2 BOARD-LEVEL TESTS

12-5

APPENDIX A

LOCAL BUS CONTROL PLD DESCRIPTIONS

APPENDIX B

DRAM PLD DESCRIPTIONS

xi

Page 17
Image 17
Intel 386 manual Table of Contents Chapter Physical Design and Debugging