Circuit for managing the transfer of data streams from a plurality of sources within a system

A system comprising:

• a plurality of data sources for providing an output data stream synchronous with an external timing signal;
• an output register for storing data available at an output of the system;
• a selection multiplexer for transferring the data from said plurality of data sources to said output register,
• a control circuit for managing transferring of the data within the system and comprising a plurality of circuit blocks, with each circuit block being connected to one of said plurality of data sources and comprising
• a detection circuit for detecting availability of the data at an output of a selected data source,
• a conditioned update path connected to said detection circuit for providing an update flag, and
• at least one logic gate having a first input for receiving the update flag and a second input for receiving an output signal from said detection circuit for providing a selection signal for the selection multiplexer.

A method for managing transfer of data within a system comprising a plurality of data sources for providing an output data stream synchronous with an external timing signal, an output register for storing data available at an output of the system, a selection multiplexer for transferring the data from the plurality of data sources to the output register, and a plurality of circuit blocks with each circuit block being connected to one of the plurality of data sources, the method comprising:

• detecting availability of the data at an output of a selected data source using a detection circuit;
• providing an update flag via a conditioned update path connected to the detection circuit;
• and
• performing at least one logic function based upon the update flag and an output signal from the detection circuit for providing a selection signal for the selection multiplexer.