Description

The D8254 is a programmable interval timer/counter, binary compatible with the 82C54 industry standard. Since DCD’s core value is innovation, this unique IP Core solves one of the most common problems in any micro-computer system: the generation of accurate time delays under software control. The D8254 can be used as:

  • Real-time clock
  • Even counter
  • Digital one-shot
  • Programmable rate generator
  • Square wave generator
  • Binary rate multiplier
  • Complex waveform generator
  • Complex motor controller
  • Interrupt on terminal count

The D8254 includes a fully automated test bench with a complete set of tests, which allows easy package validation at each stage of the SoC design flow. Our proprietary core is a technology-independent design that can be implemented in a variety of process technologies.

DESIGN FEATURES:

ALL DCD’S IP CORES ARE TECHNOLOGY INDEPENDENT WHICH MEANS THAT THEY ARE 100% COMPATIBLE WITH ALL FPGA & ASIC VENDORS E.G.

  • Altera / Intel,
  • Xilinx / AMD,
  • Lattice,
  • Microsemi / Microchip,
    and others.
  • TSMC
  • UMC
  • SK Hynix
    and others.

Key features

  • Three independent 16-bit counters
  • Six programmable Counter modes
    • Interrupt on terminal count
    • Hardware retriggerable One-Shot
    • Rate Generator
    • Square wave mode
    • Software triggered strobe
    • Hardware triggered strobe
  • Binary or BCD counting
  • Status Read Back Command
  • Simple interface allows easy connection to microcontrollers
  • Fully synthesizable
  • Static design and no internal tri-states

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