| 摘要 |
PURPOSE:To prevent a sense/control operation from being performed by a service processor by performing the following transmission/reception of shift data only by a unit holding a selective state based on the shift data at a time when an arrival bit is detected. CONSTITUTION:A common address is set for Sense/Control Tables 22 provided in the units (0)-(15), and a unit address is transferred to the common address in a broadcast instruction. When a transferred address coincides with its own unit address, the title system is constituted so that the selective states can be held at the units (0)-(15), and following transfer data from the service processor 1 can be received by a shift register 21 by issuing a notice. In the unit which performs active insertion, the shift register 21 is cleared to '0', and the confirmation of the arrival bit of the shift data sent hereafter can be performed completely. |
