IBM DS-2000 warranty Table of Contents

Page 2

TABLE OF CONTENTS

WARRANTY INFORMATION . . . . . . . . . . . . i

LIST OF FIGURES . . . . . . . . . . . . . iii

I.INTRODUCTION . . . . . . . . . . . . . . . . 1

II. BOARD DESCRIPTION . . . . . . . . . . . . . 1

III. 16550 FUNCTIONAL DESCRIPTION . . . . . . . . 3

A. INTERRUPT ENABLE REGISTER . . . . . . . . 4

B. INTERRUPT IDENTIFICATION REGISTER . . . . 5

C.FIFO CONTROL REGISTER . . . . . . . . . . 7

D.LINE CONTROL REGISTER . . . . . . . . . . 8

E.MODEM CONTROL REGISTER . . . . . . . . . 10

F.LINE STATUS REGISTER . . . . . . . . . . 11

G.MODEM STATUS REGISTER . . . . . . . . . . 13

H.SCRATCHPAD REGISTER . . . . . . . . . . . 14

IV. FIFO INTERRUPT MODE OPERATION . . . . . . . 14

V.BAUD RATE SELECTIONS . . . . . . . . . . . . 14

VI. ADDRESSING . . . . . . . . . . . . . . . . . 16

VII. INTERRUPTS . . . . . . . . . . . . . . . . . 16

VIII. PROGRAMMABLE OPTION SELECT . . . . . . . . . 16

IX. OUTPUT CONFIGURATIONS . . . . . . . . . . . 19

X.EXTERNAL CONNECTIONS . . . . . . . . . . . . 23

XI. INSTALLATION . . . . . . . . . . . . . . . . 24

XII. SPECIFICATIONS . . . . . . . . . . . . . . . 24

i

Image 2
Contents Serial Number Warranty InformationDate of Purchase Table of Contents Modem ListFifo II . Board Description IntroductionCPU Functional Description Functional Description III Functional Dlab Register DescriptionFunctional Description Interrupt Enable Register Functional Description Interrupt Identification Register Func Tional Description IID2 IID1 IID0 IPFunctional Description Fifo Control Register Line Control Register Parity selections STB STB WLS1 WLS0Functional Description Modem Control Register Temt Functional Description Line Status RegisterFfrx ThreData ready Indicates Is present Receive buffer Functional Description Modem Status Register Baud Rate Selection Fifo Interrupt Mode OperationFunctional Description Scratchpad Register PC/XTAUD Rate Selection VIII. Programmable Option Select Addressing VI. AddressingVII Interrupts Programm Able Option Select Programmable Option Select Available interrupt levels IiiOUT PUT Configurations IX. Output Configurations Output Configurations Auxin Rclk Rclk AuxinBaudout Auxout DTR RTSOutput Configurations Ternal Connections External Connections Installation XI. Installation XII Specifications