ELECTRONIC DEVICE, METHOD FOR FRAME SYNCHRONIZATION, AND MOBILE DEVICE.

摘要

An electronic device is provided with a plurality of iunctional 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 (RX₁, RX₂, ..., RX_k) for receiving at least primary and secondary data (ISOC; BE) from one of the plurality of iunctional units (1-10) in one of at least one first clock domain; and an associated transmitter port unit (TX₁, TX₂, ..., TX_k) for transmitting at least primary and secondary data (ISOC; BE) to another one of the plurality of iunctional 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 (RX₁, RX₂, ..., RX_k) associated to one of the at least one ports (P1 , P2, ... , Pk) and of a frame being transmitted via the transmitter port unit (TX₁, TX₂, ..., TX_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 (RX₁, RX₂, ..., RX_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 (RX₁, RX₂, ..., RX_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 (TX₁, TX₂, ..., TX_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.