| 摘要 |
Embodiments of the present invention provide an apparatus for synchronizing a data handover between a first clock domain and a second clock domain. The apparatus includes a calculator, a first-in-first-out storage, a synchronization pulse generator, a fill level information provider and a feedback path. The calculator is clocked with the clock of the first clock domain and configured to provide a synchronization pulse cycle duration information describing a temporal position of synchronization pulses at a clock of the second clock domain. The first-in-first-out storage is configured to take over an input data value in synchronization with the first clock domain and to provide an output data value in synchronization with the second clock domain and in response to a current synchronization pulse. The synchronization pulse generator is clocked with the clock of the second clock domain and configured to generate the subsequent synchronization pulse such that the subsequent synchronization pulse is located at the temporal position described by the synchronization pulse cycle duration information. The fill level information provider is configured to provide a fill level information describing a fill level of the first-in-first-out storage. The feedback path is configured for feeding back the fill level information to the calculator that is further configured to adjust the synchronization pulse cycle duration information based on the fill level information.
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