D8254

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.

• 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