| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce interference between a clock frequency of a microcomputer and other analog signals. <P>SOLUTION: In a sub-microcomputer control system including a main microcomputer operating on the basis of a first clock frequency, a sub-microcomputer operating on the basis of a second clock frequency, and a first communication means connecting the main microcomputer and the sub-microcomputer; a multiplier, a second communication means connecting the main microcomputer and the multiplier, and a third communication means connecting the multiplier and the sub-microcomputer are provided between the main microcomputer and the sub-microcomputer; and the second clock frequency is a frequency resulting from multiplying the first clock frequency by the multiplier, and a multiplication factor of the multiplier is controlled by an input signal input to the multiplier from the outside. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
