Interface device and method for exchanging user data

摘要

An interface apparatus is provided for exchange of different time-critical user data between a host device and a divided medium, by way of a first interface and by way of a second interface, having a resource management device and a temporary memory device. The first interface works with a first clock pulse and the second interface works with a second clock pulse. The first interface and the second interface are connected with the temporary memory device. The resource management device is set up for controlling the exchange of the different time-critical user data between the first interface and the second interface, in such a manner that collisions of the different time-critical user data within the interface apparatus and/or on the divided medium are avoided, in order to allow deterministic behavior during exchange of the different time-critical user data.

主权项

1. An interface apparatus for exchange of different time-critical user data between a host device and a divided medium, comprising:
a first interface for exchange of the different time-critical user data with the host device; a second interface for exchange of the different time-critical user data with the divided medium; a resource management device; a temporary memory device; wherein the first interface works with a first clock pulse; wherein the second interface works with a second clock pulse, which differs from the first clock pulse; wherein the first interface and the second interface are connected with the temporary memory device, in order to allow exchange of the different time-critical user data between the first interface and the second interface, by way of the temporary memory device; wherein the resource management device is configured to control the exchange of the different time-critical user data between the first interface and the second interface, in such a manner that collisions of the different time-critical user data within the interface apparatus and/or on the divided medium are avoided, in order to allow deterministic behavior during the exchange of the different time-critical user data; and wherein the resource management device is further configured to control the temporary memory device in such a manner that the different time-critical user data is temporarily storable, using the temporary memory device, in such a manner that a clock pulse difference between the first clock pulse and the second clock pulse is balanced out, wherein a transmission frame of a collision recognition protocol is generated in the interface apparatus, in which collision recognition protocol the functionality of a layer has been enriched by a command/response protocol.