| 摘要 |
PURPOSE:To attain the effective debug, maintenance and diagnosis of an information processor by providing a function which stops quickly with the processor itself when a phenomenon is detected together with a function with which a system stops synchronously. CONSTITUTION:A phenomenon 45, i.e., the selection conditions of a phenomenon 43 is set to a mode register 44 of an information processor when it is desired that a clock is quickly stopped by an optional phenomenon 43 detected by the information processor itself as one of actions for clock control of a tight coupling information processing system. Then a mode register 49 is set so as to select an FF48. If the phenomenon 45 set at the register 44 is produced within a logical circuit 42 under such conditions, a phenomenon detection signal 47 is outputted from a selection circuit 46 to set the FF48. Then a clock stop signal 52 is outputted to a clock distribution circuit 40 from a selection circuit 51, and the clock of the information processor is stopped. |
