Importance

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Abstract

An electronic device is provided with a plurality of functional units (1-10) for communicating at least primary and secondary data (ISOC; BE) based on frames (FR) each being divided into a number of time slot (SL), at least one network node (S1-S4) for coupling functional units (1-10) comprising at least one port (P1, P2, . . . , Pk) having an associated receiver port unit (RX.sub.1, RX.sub.2, . . . , RX.sub.k) for receiving at least primary and secondary data (ISOC; BE) from one of the plurality of functional units (1-10) in one of at least one first clock domain; and an associated transmitter port unit (TX.sub.1, TX.sub.2, . . . , TX.sub.k) for transmitting at least primary and secondary data (ISOC; BE) to another one of the plurality of functional units (1-10) in one of at least one second clock domain. The at least one second clock domain is different from the at least one first clock domain. A time indication register (t[port]) is provided for storing information relating to the relative time position of a frame being received via the receiver port unit (RX.sub.1, RX.sub.2, . . . , RX.sub.k) associated to one of the at least one ports (P1, P2, . . . , Pk) and of a frame being transmitted via the transmitter port unit (TX.sub.1, TX.sub.2, . . . , TX.sub.k) associated to the one of the at least one ports (P1, P2, . . . , Pk), wherein the time indication register (t[port]) is updated according to at least the primary and/or secondary data (ISO; BE) being received via the receiver port unit (RX.sub.1, RX.sub.2, . . . , RX.sub.k) associated to the one of the at least one ports (P1, P2, . . . , Pk). A timer managing means (TMM) is provided for monitoring the at least primary and secondary data (ISOC; BE) received via the receiver port (RX.sub.1, RX.sub.2, . . . , RX.sub.k) associated to one of the at least one ports (P1, P2, . . . , Pk) in one of the at least one first clock domain and for pausing the transmission of at least the primary data (ISOC) via the transmitter port unit (TX.sub.1, TX.sub.2, . . . , TX.sub.k) associated to the one of the at least one ports (P1, P2, . . . , Pk), in one of the at least one second clock domain, if the value of the time indication register exceeds a predetermined threshold.

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First Claim