MICROCOMPUTER, SEMICONDUCTOR DEVICE, AND MICROCOMPUTER APPLIED EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To suppress the risk that noise generated in one analog circuit goes around another analog circuit through an analog power supply route.;SOLUTION: In a plurality of analog circuits (43-46) that can operate in parallel and are coupled to a common analog power supply terminal, one analog circuit is controlled in the analog operation start on the basis of timing control data that specifies an interval for suppressing the analog operation start of the one analog circuit in the analog operation cycle of the other analog circuit that has already started the analog operation. In short, the control is conducted so that, when the operation of one analog circuit is started, the timing of being influenced by the analog operation start of the other analog circuits in the operation cycle is retained as timing control data in advance, and the analog operation start of the other analog circuits is delayed or temporarily suppressed in synchronization with the operation start of the one analog circuit using the timing control data.;COPYRIGHT: (C)2011,JPO&INPIT