| 摘要 |
PURPOSE:To execute a test while guaranteeing a bus competition state in a bus competing operation testing system. CONSTITUTION:A central processing unit 5 successively applies an instruction for turning the operation states of arbitrated bus slave devices 7, 10 to test operation states to a bus operation control instructing device 6 at the time of testing bus competition operation. The device 6 receiving the instruction successively imparts a test operation starting instruction to the device 7, 10. At the time of receiving the test operation starting instruction, the devices 7, 10 transfer repeatedly the data of contents instructed by the test operation starting instruction to/from a main storage device 3 while being arbitrated by a bus arbitration device 1 until the application of a testing operation end instruction from the device 6. |
