| 摘要 |
PURPOSE:To prevent a first control part from misjudging that a trouble has occurred in a second control part, by a method wherein, when a power switch is turned ON during a power-OFF sequence action, a reset request signal and a reset signal are respectively issued to the first control part and the second control part to conduct a reset action separately. CONSTITUTION:A control part 1 and a control part 2 are respectively provided with a reset means 1a and a reset request means 2a. When a power switch is turned ON during a power-OFF sequence action, a reset request signal is issued from the reset request means 2a of the control part 2 to the control part 1 through PIAs 4, 5. According to the request signal, a reset signal is issued from the reset means 1a of the control part 1 to the control part 2 through a reset line 17. Then, the reset actions of the control parts 1, 2 are carried out. In this manner, a system is made available, wherein a power-OFF sequence can operate only in the control part 2, and the control part 1 never misjudges that a trouble has occurred in the control part 2 even if the power switch is repeatedly turned ON/OFF during a power-OFF sequence action. |
