| 摘要 |
PROBLEM TO BE SOLVED: To prevent an instruction code following an interrupted instruction from being executed in accordance with the end of interruption processing. SOLUTION: When a start request signal of interruption processing is generated while the operation of a processor 2 is stopped, the operation of the processor 2 is temporarily restarted to execute the interruption processing. When the interruption processing is ended, a register read signal is outputted to a DMA controller 6 to stop the operation of the processor 2 again. Accordingly, an instruction code following an access request to a RAM 5 can be prevented from being executed in accordance with the end of interruption processing in spite of execution of DMA processing. COPYRIGHT: (C)2005,JPO&NCIPI
|
