CLOCKLESS CHIP PDF

I thought another advantage was that it modularized chip design to some degree – ie you can improve individual sections to run much faster. Clockless Chip Full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, Ask Latest information. Clockless Chips. Presented by: K. Subrahmanya Sreshti. (05IT). School of Information Technology. Indian Institute of Technology, Kharagpur. Date: October .

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Every action of the computer takes place in tiny steps, each a billionth of a second long.

A simple transfer of data may take only one step; complex calculations may take many steps. All operations, however, must begin and end according to the clock’s timing signals.

The use of a central clock also creates problems.

As speeds have increased, distributing the timing signals has become more and more difficult. Present-day transistors can process data so quickly that they can accomplish several steps in the time that it takes a wire to carry a signal from one side of the chip to the other. Keeping the hcip identical in all parts of a large chip requires careful design and a great deal of electrical power.

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Wouldn’t it be nice to have an alternative? Clockless approach, which uses a technique known as asynchronous logic, differs from conventional computer circuit design in that the switching on and off of digital circuits is controlled individually by specific pieces of data rather than by a tyrannical clock that forces all of the millions of the circuits on a chip to march in unison. It overcomes all the disadvantages of a clocked circuit such as slow speed, high power consumption, high electromagnetic noise etc.

Clockless Chips – PowerPoint PPT Presentation

For these reasons the clockless technology is considered as the technology which is going to drive majority of electronic chips in the coming years. The clock is a tiny crystal oscillator that resides in the heart of every microprocessor chip. The clock is what which sets the basic rhythm used throughout the machine.

The clock orchestrates the synchronous dance of electrons that course through the hundreds of millions of wires and transistors of a modern computer.

PPT – Clockless Chips PowerPoint presentation | free to download – id: 1aa2bc-ZDc1Z

clockess Such crystals which tick up to 2 billion times each second in the fastest of today’s desktop personal computers, dictate the timing of every circuit in every one of the chips that add, subtract, divide, multiply and move the ones and zeros that are the basic stuff of the information age. Conventional chips synchronous operate under the control of a central clock, which samples data in the registers at precisely timed intervals.

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Computer chips of today are synchronous: One advantage of a clock is that, the clock signals to the devices of the chip when to input or output. This functionality of the synchronous design clockkless designing the chip much easier. There are problems that go along with the clock, however.

Is It Time for Clockless Chips?

Clock speeds are now in the gigahertz range and there is not much room for speedup before physical realities start to complicate things.

With a gigahertz clock powering a chip, signals barely have enough time to make it across the chip before the next clock tick. At this point, speedup up the clock frequency could become disastrous. This is when a chip that is not constricted by clock speeds could become very valuable.

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