| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a data processor capable of promptly restoring a processing unit from an idle state. <P>SOLUTION: A data processor including plural processing units restores a processing unit put into an idle state by execution of a specific command, using an interrupt, restoration processing for responding to rewrite of a control bit rewritable by the processing units to a predetermined value, and restoration processing for responding to task scheduling of the processing unit in the idle state. Therefore, another processing unit can perform rewrite of the control bit or task scheduling, except when restoration from the idle state needs required processing by interrupt processing. When rewrite of the control bit or task scheduling can be performed, interrupt processing accompanying null processing is not required. <P>COPYRIGHT: (C)2013,JPO&INPIT |
