| 摘要 |
PURPOSE:To perform error processing efficiently, by performing the error processing to all the devices if multiplex error is displayed with multiplex error latch and processing to the error processing only in other cases. CONSTITUTION:When an error detection circuit 9 detects an error, an error address register 10 performs error processing request to program. In this case, the address of the device during processing is tentatively stored in an error latch 11, but if a new error is detected at that stage, the address is stored in the multiplex error latch. Further, if the program receives the error processing and a latch 12 does not display the multiplex error, processing is made to the latch 11, and if multiplex error is displayed with the multiplex error latch 12, error processing is made to all the devices. Thus, error processing can efficiently be made by avoiding the processing to all the devices other than multiplex error display. |
