| 摘要 |
PROBLEM TO BE SOLVED: To realize a fault or abnormal operation by inserting a data transfer device to a bus connecting a peripheral equipment and a data processor and adding this with a function separately generating transmission data and transmitting generated data in stead of transmitted data when a prescribed command is generated. SOLUTION: At the point of the time of receiving a command among transmission data transferred in a received data area 9d, the command is compared with a command registered in a condition table 9c to detect the coincidence of these. When the command coincides, prescribed data showing the generation condition of fault data stored in the condition table 9c is transferred to the operation area of RAM 9 to call a fault data generation program 9b. When the command does not coincide in the data comparison of the command in the condition table 9c, a transfer condition judging program 9a transfers received data to the transmission data area 9e of RAM 9 as it is and calls a data transmission/reception program 8a to make MPU 7 execute processing. |
