IEEE 1394 Serial bus system using a mapping table for identifying nodes having required capabilities to establish isochronous connections

摘要

In an IEEE-1394 serial bus system, a controlling node reads information from the configuration ROM of each of other nodes attached to the bus and establishes in a mapping table a correspondence between the identifier of each node and the read information. The controlling node identifies particular nodes having required capabilities according to the information stored in the mapping table and requests an isochronous resource manager to obtain information necessary for transmission of isochronous data. The obtained information is then set into plug control registers of the identified nodes to establish a connection between the identified nodes. <IMAGE>