Preliminary DSH32 Synchronous/Asynchronous Serial Line Option

Company:Digital Equipment Corporation
Part:EK-283AA-AD-001
Date:1988-10-28
Keywords:VAXstation 2000, MicroVAX 2000

Table of Contents

  • 1 Introduction
  • 2 Physical Description
    • 2.1 DSH32 Controller Module
    • 2.2 DSH32 Driver/Receiver Modules
    • 2.3 Electrical Characteristics
    • 2.4 Environmental Specifications
  • 3 DSH32 Controller Module Input/Output Connectors
  • 4 Functional Description
    • 4.1 Interface Subsystem
    • 4.2 Asynchronous Communication Subsystem
      • 4.2.1 Control and Status Register
      • 4.2.2 Receive Buffer Register
      • 4.2.3 Receive Timer Register
      • 4.2.4 Line Parameter Register
      • 4.2.5 Transmit FIFO Data Register
      • 4.2.6 Transmit FIFO Size Register
      • 4.2.7 Line Status Register
      • 4.2.8 Line Control Register
      • 4.2.9 Transmit Enable Register
    • 4.3 Synchronous Communication Subsystem
      • 4.3.1 I/O Bus Interface
      • 4.3.2 DMA Controller
      • 4.3.3 Modes of Operation
      • 4.3.4 Interrupts
      • 4.3.5 Registers
  • 5 Internal Diagnostics
    • 5.1 Power-up Test
    • 5.2 Self-Test
      • 5.2.1 Power-Up and Self-Test Error Codes
    • 5.3 System Exerciser
      • 5.3.1 System Exerciser Error Codes
    • 5.4 Option Diagnostic ROM
    • 5.5 Base System ROM

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