LK200 Functional Specifications

Company:	Digital Equipment Corporation
Part:	A-SP-LK200-A-0
Date:	1982-05
Keywords:	LK201 keyboard
Cited by:	EL-00070-00 Rev. B, DEC STD 070-0 Video Systems Standard -- Introduction

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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