| 摘要 |
A receiver (RCV) for receiving data from a transmitter, comprises a first clock domain operating at a data rate synchronous with a clock of the transmitter, and having an input (RI) for receiving data. The data includes primary data, secondary data and control data. The receiver further has a second clock domain operating at a clock rate independent from the transmitter, and a clock-domain crossing unit for transferring data from the first to the second clock domain. The receiver further includes a slot counter for counting a number of units of received data converted by the clock-domain crossing unit into the second clock domain, a first identification unit (PRIM) for identifying control data indicative for the presence of primary and secondary data and a second identification unit (PAUSE) for identifying control data indicative whether slot counter of the receiver will be updated or not. It has an output (RO) for communicating an indicator indicative for the value of the slot counter. The receiver cooperates with a transmitter comprising a unit (M 1 , HEAD, TRAIL, PAUSE, PRIMARY, SECONDARY) for transmitting primary data and control data, a counter (slot) for counting the transmitted amount of data of the primary type, an input (TI) for obtaining an indication for a received amount of primary data. The transmitter further comprises a facility (S 2 ) for calculating the difference between the transmitted amount of primary data and the received amount of primary data, the unit for transmitting data being controlled by the outcome (ns) of this calculation.
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