Interface device and method for exchanging user data

A method for exchange of different time-critical user data between a host device and a divided medium, the method comprising the acts of:

• operating a first interface of an interface apparatus with a first clock pulse;
• operating a second interface of the interface apparatus with a second clock pulse, which can be different from the first clock pulse;
• connecting the first interface and the second interface with a temporary memory device;
• exchanging the different time-critical user data between the first interface and the second interface by way of the temporary memory device;
• controlling the exchange of the different time-critical user data between the first interface and the second interface in such a manner, by way of a resource control device, that collisions of the different time-critical user data within the interface apparatus and/or on a divided medium connected with the interface apparatus are avoided, in order to allow deterministic behavior during the exchange of the different time-critical user data;
• temporarily storing in memory the different time-critical user data, in such a manner that a clock pulse difference between the first clock pulse and the second clock pulse is balanced out;
• and
• generating a transmission frame of a collision recognition protocol in the interface apparatus, in which collision recognition protocol the functionality of a layer has been enriched by a command/response protocol.

A computer product, comprising a non-transitory computer readable medium having stored thereon program code segments that:

• operate a first interface of an interface apparatus with a first clock pulse;
• operate a second interface of the interface apparatus with a second clock pulse, which can be different from the first clock pulse;
• connect the first interface and the second interface with a temporary memory device;
• exchange the different time-critical user data between the first interface and the second interface by way of the temporary memory device;
• control the exchange of the different time-critical user data between the first interface and the second interface in such a manner, by way of a resource control device, that collisions of the different time-critical user data within the interface apparatus and/or on a divided medium connected with the interface apparatus are avoided, in order to allow deterministic behavior during the exchange of the different time-critical user data;
• temporarily store in memory the different time-critical user data, in such a manner that a clock pulse difference between the first clock pulse and the second clock pulse is balanced out;
• and
• generate a transmission frame of a collision recognition protocol in the interface apparatus, in which collision recognition protocol the functionality of a layer has been enriched by a command/response protocol.