Ten Commandments of Excellent Design VHDL Code Examples

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The Ten Commandments paper suggested that a method for exchanging singlepoint information across clock domains is by the use of toggle signals.Here,it is assumed that the toggle event should generate an active-high pulse to pass to a state machine.Every toggle??rising edge and falling edge??must create the pulse.In addition,the pulse must be synchronized correctly to the receiver's clock.The code to accomplish this is shown in Code Sample 5:

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