| 摘要 |
PURPOSE:To use the off-line system as a debug system without possibility of interference to the on-line system, by means of the operation mode of a duplex system. CONSTITUTION:One isolation signal S of ''Matecp Isolate'' is added are on the IO bus HIB, also the split keys K0, K1 are provided on each switch controller SWC, and the system is controlled as shown in Table 1 in accordance with combination of the status. The access becomes possible by sending out an isolation signal from the on-line system CP (CP0), and also turning on the split key K1 by SWC1. Also, SWC0 only is inhibited by CP1 of the off-line system, and interference from the off- line system to the on-line system is not caused. |
