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WD61C40A

TABLE OF CONTENTS
Section Title Page

1.0 INTRODUCTION 31-1
1.1 Features 31-1
1.2 General Description 31-1

2.0 ARCHITECTURE 31-3

3.0 INTERFACES . . 31-4
3.1 Microprocessor Interface 31-4
3.2 Host Port Interface 31-4
3.3 Disk Port Interface 31-4
3.4 Buffer Port Interface 31-4

4.0 SIGNAL DESCRIPTION . 31-4
4.1 Signal to Pin Location 31-4
4.2 Detailed Signal Description 31-5

ADVANCED INFORMATION 11/15/91 31-i
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INTRODUCTION WD61C40A

1.0 INTRODUCTION