LK200 Functional Specifications

Company:Digital Equipment Corporation
Part:A-SP-LK200-A-0
Date:1982-05
Keywords:LK201 keyboard

Table of Contents

  • 1.0 Introduction
    • 1.1 Scanning
      • 1.1.1 Timing Requirements
      • 1.1.2 Sneak Path Detection
      • 1.1.3 Rollover
    • 1.2 Transmission
      • 1.2.1 Transmission Buffer and speed
      • 1.2.2 Transmission Encoding
    • 1.3 Receive
      • 1.3.1 Receive Buffer and Speed
      • 1.3.2 Receive Encoding
  • 2.0 Keyboard Functional Divisions
  • 3.0 Modes
    • 3.1 Down Only
    • 3.2 Down, Autorepeat
    • 3.3 Down/up
    • 3.4 Special Considerations Regarding Autorepeat
    • 3.5 Special Considerations Regarding Down/up mode
    • 3.6 Autorepeat Rates
  • 4.0 Keyboard Peripherals
    • 4.1 Audio
    • 4.2 LED's
  • 5.0 Keyboard-to-Terminal Protocol
    • 5.1 Keycode Transmission
    • 5.2 Special Code Transmission
    • 5.3 Powerup Transmission
  • 6.0 Terminal-to-Keyboard Protocol
    • 6.1 Commands
    • 6.2 Parameters
    • 6.3 Peripheral Commands
      • 6.3.1 Flow control
      • 6.3.2 LED's
      • 6.3.3 Audio
      • 6.3.4 Autorepeat
      • 6.3.5 Other
    • 6.4 Mode Set Commands
      • 6.4.1 Division Mode Settings
      • 6.4.2 Autorepeat Rate Buffer Association
      • 6.4.3 Autorepeat Rate Buffer Values
  • 7.0 Special Considerations
    • 7.1 Error Handling
    • 7.2 Keyboard Locked Condition
    • 7.3 Reserved code
    • 7.4 Test mode
    • 7.5 Future Expansion
  • 8.0 Appendix I -- Keycode Translation Table
  • 9.0 Appendix II -- Defaults
  • 10.0 Appendix III -- Keyboard Matrix
  • 11.0 Appendix IV -- Keyswitch Layout

Copies

Address: ftp://ftp.dbit.com/pub/pdp8/doc/lk200fs.doc
Site: John Wilson's D Bit, Home of Ersatz-11
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