Abstract: A method of data streaming in a streaming system (200) that comprises a processor (202) and a controller (204) operably coupled to a streaming peripheral (214) via a shared interconnect (206) is described. The method comprises at the controller, receiving at least one descriptor that points to at least one header data element in memory and at least one payload buffer element in the streaming peripheral (214); reading the at least one descriptor (211) by the controller (204); fetching by the controller the at least one header data element from memory and the at least one payload element from the payload buffer (212) in the streaming peripheral (214) referred to by the descriptor (211).

Abstract: A method of data streaming in a streaming system (200) that comprises a processor (202) and a controller (204) operably coupled to a streaming peripheral (214) via a shared interconnect (206) is described. The method comprises at the controller, receiving at least one descriptor that points to at least one header data element in memory and at least one payload buffer element in the streaming peripheral (214); reading the at least one descriptor (211) by the controller (204); fetching by the controller the at least one header data element from memory and the at least one payload element from the payload buffer (212) in the streaming peripheral (214) referred to by the descriptor (211).

Abstract: A system-on-chip comprises an internal module having diagnostic functionality, and a physical communications port coupled to a first data path and arranged to support, when in use, a datagram-based communications interface for communicating with an external data communications unit. Debug logic circuitry is operably coupled to a debug interface and the internal module, the debug interface being arranged to support communication of debug data relating to the internal module. The system-on-chip also comprises configurable hardware logic circuitry configured as datagram processing logic and is arranged to support use of a datagram to communicate with the debug logic. The datagram processing logic is operably coupled to the first data path and a second data path, the second data path being operably coupled to the debug interface.