| 摘要 |
PURPOSE:To realize execution of the normal operation when the specified same address has some fault in case the jumping microorder is stored in the above mentioned address to secure the dynamic stop state for the microprogram control system. CONSTITUTION:Address n of the order which causes the dynamic stop state to control memory CM at the power make time is sent via address line A, and thus the contents turn to the order jumping to address n of its own to secure the idle state at address n. And in case the fault such as the parity error or the like occurs to the contents read out of address n, the fault is detected at fault detection circuit EC to deliver fault information E. At the same time, information En showing the fault occurrence is sent to sequence control unit SC to carry out the fault processing. After this, unit SC sends the address m to control memory CM in the form of the address information. The order jumping to address n is stored in address m, and address m is sent to memory CM via the conversion circuit to secure practically the dynamic stop state at address m. |
