Intel™ 8279 Programmable Keyboard/Display Interface Device

Overview

The AL8279 core is the VHDL model of the Intel™ 8279 Programmable Keyboard/Display Interface device designed for use with Intel microprocessors. The keyboard portion provides a scanned interface to 64-contact key matrix while the display portion provides an interface for popular display technologies (e.g. LED).

Key Features

  • Functionally based on the Intel 8279 device
  • Simultaneous keyboard display operations
  • Scanned keyboard and sensor modes
  • Strobed input entry mode
  • 8-character keyboard FIFO
  • 2-key lockout or N-key rollover with contact debounce
  • Dual 8- or 16-numerical display
  • Single 16-character display RAM
  • Programmable scan timing and mode
  • Interrupt output on key entry

Technical Specifications

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Semiconductor IP