IBM DS-2000 warranty Functional Description

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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 InformationDate of Purchase Table of Contents Modem ListFifo II . Board Description IntroductionCPU Functional Description Dlab Register Description Functional Description III FunctionalFunctional Description Interrupt Enable Register Functional Description Interrupt Identification Register IID2 IID1 IID0 IP Func Tional DescriptionFunctional Description Fifo Control Register Line Control Register STB STB WLS1 WLS0 Parity selectionsFunctional Description Modem Control Register Ffrx Functional Description Line Status RegisterTemt ThreData ready Indicates Is present Receive buffer Functional Description Modem Status Register Functional Description Scratchpad Register Fifo Interrupt Mode OperationBaud Rate Selection PC/XTAUD Rate Selection VIII. Programmable Option Select Addressing VI. AddressingVII Interrupts Programm Able Option Select Available interrupt levels Iii Programmable Option SelectOUT PUT Configurations IX. Output Configurations Output Configurations Baudout Auxout Rclk AuxinAuxin Rclk DTR RTSOutput Configurations Ternal Connections External Connections XII Specifications Installation XI. Installation