Interface module

An interface module, comprising:

• a plurality of connections, including a configuration connection, a reset connection, a transmission connection, and a reception connection;
• a plurality of interface processing units, including a first interface processing unit and a second interface processing unit different from said first interface processing unit, said interface processing units having a first and a second activation connection, a first and a second transmission connection, and a first and a second reception connection;
• a multiplexer having:
• a transmission input and a reception input connected to said transmission connection and to said reception connection of said plurality of connections;
• a first and a second transmission output and a first and a second reception output, and a control input;
• said first transmission output and said first reception output of said multiplexer being connected to said first transmission connection and to said first reception connection of said first interface processing unit;
• and
• said second transmission output and said second reception output of said multiplexer being connected to said second transmission connection and to said second reception connection of said second interface processing unit;
• an evaluation circuit having an input connection connected to said configuration connection of said plurality of connections and configured to convert a level of a signal at said input connection into a binary code and to make the signal available at an output connection connected to said control input of said multiplexer;
• a selection circuit having a control connection connected to said output connection of said evaluation circuit and having a first and a second signal output connected to said first activation connection of said first interface processing unit and to said second activation connection of said second interface processing unit.