Method and apparatus for interfacing a parallel connection

An apparatus for interfacing a parallel connection comprising:

• a transmission path from a synchronous data flow to a parallel connection, said transmission path comprising:
• parallel conversion means for packetizing an information content of the synchronous data flow and providing M flows of bytes onto the parallel connection by carrying out a re-allocation into packets having M lines;
• and
• line codification/serialization means providing the codification of M flows and converting from parallel to serial;
• and
• a receiving path from the parallel connection to the synchronous data flow,
• said parallel conversion means reallocating the synchronous data flow into elementary packets comprising M lines and B+1 columns;
• employing an integer number of said elementary packets in order to form a parallel packet, said number of elementary packets being chosen in such a way as to maintain a constant phase relationship between an input frequency and an output frequency according to a number of parity lines in the elementary packet and to a codification factor on the parallel connection;
• inserting the input data flow into said parallel packet, and transmitting it to the parallel connection.

A data packet for implementing a method for interfacing a parallel connection, the parallel connection transmitting high bit-rate signals for a short distance, the method comprising:

• receiving a synchronous N-bits input data flow, the N-bits input data flow being at a first input frequency;
• inserting said input data flow into parallel packets, the parallel packets having a given length;
• and
• outputting said packets having a given length at a second output frequency onto a M-wires parallel connection,
• said the data packet being an elementary packet comprising M lines and B+1 columns, with B being an integer, a parallel packet being defined by employing an integer number of said elementary packets, said number of elementary packets being chosen in order to maintain a constant phase relationship between the input frequency and the output frequency according to a number of parity lines in the elementary packet and to a code factor onto the parallel connection, the input data flow being inserted into said parallel packet and sent into said parallel connection.