| 摘要 |
An exemplary object is to make it possible to prompt notify a master-end control unit of failure information of a controlled device in a bus control apparatus that employs a structure in which a master-end circuit part is connected to a slave-end circuit part through a serial bus. A master circuit equipped with a control unit generates an access message for access to a control target equipped with a slave circuit, and transmits the access message to the slave circuit connected to the master circuit through a bus. The slave circuit collects information on the control target, generates a response message to the access message, generates an information message based on the information on the control target, and transmits the response message and the information message to the master circuit. If generation of the response message conflicts with generation of the information message, the slave circuit generates the information message, with a higher priority given to the generation of the information message.
|
