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IBM
DS-2000
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Functional Description
Models:
DS-2000
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Specifications
Warranty
Output Configurations
Fifo Interrupt Mode Operation
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FUNCTIONAL DESCRIPTION
F i g u r e 1 . D S - 2 0 0 0 b o a r d l a y o u t .
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Contents
Serial Number
Warranty Information
Date of Purchase
Table of Contents
Modem
List
Fifo
II . Board Description
Introduction
CPU
Functional Description
Dlab Register Description
Functional Description III Functional
Functional Description Interrupt Enable Register
Functional Description Interrupt Identification Register
IID2 IID1 IID0 IP
Func Tional Description
Functional Description Fifo Control Register
Line Control Register
STB STB WLS1 WLS0
Parity selections
Functional Description Modem Control Register
Ffrx
Functional Description Line Status Register
Temt
Thre
Data ready Indicates Is present Receive buffer
Functional Description Modem Status Register
Functional Description Scratchpad Register
Fifo Interrupt Mode Operation
Baud Rate Selection
PC/XT
AUD Rate Selection
VIII. Programmable Option Select
Addressing VI. Addressing
VII Interrupts
Programm Able Option Select
Available interrupt levels Iii
Programmable Option Select
OUT PUT Configurations IX. Output Configurations
Output Configurations
Baudout Auxout
Rclk Auxin
Auxin Rclk
DTR RTS
Output Configurations
Ternal Connections External Connections
XII Specifications
Installation XI. Installation
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