Patent ID: 7562244

Claim:
A method for a first signal transfer across different clock-domains, comprising the acts of: transferring the first signal from a previous clock domain to a current clock-domain; receiving a second signal by a first register of the current clock-domain and outputting a semi-synchronized signal; providing the semi-synchronized signal and a fully synchronized signal to a multiplexer of the current clock-domain for output of a third signal; receiving by a second register of the current clock-domain the third signal for outputting the fully synchronized signal; and outputting the first signal synchronized with the current clock-domain using the fully synchronized signal; wherein outputting the first signal synchronized with the current clock-domain using the fully synchronized signal includes the acts of: providing the fully synchronized signal to a third register for output of an output signal; and providing the fully synchronized signal and the output signal to an exclusive OR gate for output of a strobe signal to a further multiplexer for outputting the first signal synchronized with the current clock-domain.