| 摘要 |
<p>PURPOSE:To perform the initialization of a board on the system bus of duplex constitution by an easy constitution and in a short time by performing independently the initialization of respective devices in the system for respective systems under the separated condition. CONSTITUTION:At the time of the initialization of a duplex system, when a signal to represent the execution of the initialization to control circuits 6A and 6B or a resetting signal is inputted, a control signal '0' is generated from respective control circuits 6A and 6B, supplied to gates 50A and 50B of intersecting circuits 5A and 5B of respective systems and respective intersecting and connecting transfer paths become the break condition. Subsequently, in respective systems of a 0 system and a 1 system, the initialization is performed. Thus, the initialization is performed as an individual system in the system of respective systems, and at the initialization of the device to constitute respective systems, by performing the coincidence detection concerning a device number without performing the coincidence detection concerning a system number, the reception detection is performed to a system bus interface control part.</p> |
