| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To complete a bus cycle even if a bus master hangs up in the midway of communication, and to prevent failure occurrence in a bus slave. <P>SOLUTION: A data transfer circuit 100 for transferring a signal between the bus master 1 and the bus slave 2 comprises a protocol storage section 103 for storing information about the communication method between the bus master 1 and the bus slave 2, a transfer control section 101 for acquiring information about a DevBus signal from a protocol storage section 103 and outputs it based on a MasBus signal received from the bus master 1, and a signal selection section 102 for outputting a SELECT signal for making one of the MasBus signal and DevBus signal be output according to the state of at least one of the bus master 1 and transfer control section 101. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
