| 摘要 |
<p>A multistation communication bus system including a plurality of master stations and a slave station for transmitting information from the master stations and slave station using a frame based arbitration process. The master station which wins the arbitration transmits a framewise organized message including locking and unlocking signals for respectively, locking and unlocking an addressed slave station, thus blocking any other master station from accessing the slave station for a duration of multiple frames of the message. Any other master station, upon detecting this blocking condition, executes a first sequence of retry undertakings at a combined time length that is substantially less than a standard maximum value of the duration. A second sequence of less frequent retry undertakings at a combined time length that is more than a standard maximum value of the duration may then be attempted.</p> |
