| 摘要 |
<P>PROBLEM TO BE SOLVED: To make a communication among a plurality of kinds of devices constituting an electronic musical instrument through a bus. <P>SOLUTION: When a main controller device 10 communicates with a keyboard device 14, the communication is carried out by a standard protocol. In this case, the main controller device 10 serves as a master to constitute a header part of an address unique to the keyboard device 14 which is a slave address as a transmission destination address and an address for the standard protocol of the main controller device 10 as a transmission source address and sends it to an E bus 11 together with a data part. Since the transmission destination address matches the address of the keyboard device 14, the keyboard device receives the transmission source address and the data part following the transmission destination address. <P>COPYRIGHT: (C)2010,JPO&INPIT |
