| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect the occurrence of a new interruption in the case that the new interruption occurs before interruption processing is completed. <P>SOLUTION: An interruption control circuit 24 includes: an interruption signal reception part 31 for receiving an interruption occurrence signal; an interruption storage part 32 for storing interruption occurrence information showing an interruption occurrence when the interruption occurrence signal is received; an enabling signal reception part 33 for receiving an interruption enabling signal showing whether to allow the execution of interruption processing; an interruption processing requesting part 34 for outputting an interruption processing request signal when the interruption enabling signal showing that the execution of interruption processing is allowed is received and the interruption occurrence information is stored; an interruption loss detection part 35 for detecting the loss of a new interruption occurrence signal when the new interruption occurrence signal is received with the interruption occurrence information stored; and a loss signal output part 37 for outputting an interruption loss signal showing the loss of the new interruption occurrence signal when the loss of the new interruption occurrence signal is detected. <P>COPYRIGHT: (C)2013,JPO&INPIT |
