| 摘要 |
<p>PURPOSE:To obviate the problems caused by fixation of a control method by determining a power control method of a hard disk in accordance with a state of the time of the start of a built-in switch. CONSTITUTION:When Bit 6 is '0', as for a power control method of a hard disk 2, the method in which a spindle motor is always turned on is selected, and on the other hand, when said Bit is '1', the method in which a rotation of the spindle motor is usually turned off, and turned on only at the time of executing read and write to the hard disk 2 is selected. As a result, by determining it in accordance with a state of a switch contained in advance, its user can select the power control method of the hard disk 2 in accordance with its use. In such a way, various problem points caused by a fact that the power control method of the hard disk 2 is fixed can be reduced.</p> |
