Pulse swallowing type clock synchronization circuit
A clock synchronization and pulse-swallowing technology, applied in the field of pulse-swallowing clock synchronization circuits, can solve the problems of synchronization failure and high circuit board design requirements, and achieve the effects of simplifying design, improving convenience, and reducing costs
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[0016] The multi-chip connection method of the improved pulse-swallowing clock synchronization circuit proposed by this scheme is as follows: figure 2 As shown, since the number of sync pulse input ports is reduced to one, compared to figure 1 With the traditional pulse-swallowing synchronization method, the number of ports of the chip and the number of interconnection lines are greatly reduced. The essence of the improved pulse-swallowing clock synchronization circuit proposed in this program is to cancel the self-loop link of the synchronization pulse signal in the traditional pulse-swallowing clock synchronization circuit, and add a step-by-step variable delay circuit inside the chip to complete similar functions. .
[0017] image 3 Shown, relate to a kind of pulse-swallowing type clock synchronous circuit of the present invention, comprise edge trigger selection circuit, its input end is connected with the synchronous pulse input signal that master chip produces; The ...
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