Most integrated circuits of sufficient complexity require a clock signal in order to synchronize different parts of the chip and to account for propagation delays. As chips get more complex, the problem of supplying accurate and synchronized clocks to all the circuits becomes more and more difficult. The preeminent example of such complex chips is the microprocessor, the central part of modern computers.
The speed of a clock signal in a computer is called the clock rate or clock frequency.
Categories: Digital electronics | Computer terminology
The clockmultipliercircuit generates a number of pulses to be used as the clock output signal, wherein the pulses have a pulsewidth that is independent of the number of pulses generated and independent of the frequency of the clock input signal.
The clockmultipliercircuit is configured to generate a number of pulses on the output clocksignal responsive to an edge of the input signal, wherein the pulses have a width that is independent of the number of pulses generated and independent of the frequency of the input signal.
In other embodiments, separate clock generation circuitry (not shown) may be included in parallel with the clockmultipliercircuit 14 and the clock to the core 16 may be selected from the clockmultipliercircuit 14 or the clock generation circuit by selection circuitry based on whether or not testing is being performed.
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