| 摘要 |
<p>PURPOSE:To shorten a power source turn on and a micro-program load time by executing the power source turn on of respective processors in parallel to the initializing processing of a system control device itself after the power source turn on of the system control device is executed. CONSTITUTION:When a power source turn on switch 2 is closed and a power source is supplied from a power source 3 to respective parts of a system control device 1, a microprocessor 4 immediately activates a microprocessor 8 by the micro-program of a ROM4A and further, executes the initializing processing of the system control device 1 itself. On the other hand, the micro-processor 8 starts the power source input through power source input interface circuits 10-12 to respective processors at the prescribed sequence and the timing by the control program of a ROM 9. Thus, a system rise time can be shortened.</p> |
