| 摘要 |
PROBLEM TO BE SOLVED: To execute a connection test of channel device (CH) and peripheral processor (PCU) without using an expensive pseudo input and output processor (PIO) while improving the test efficiency and the coverage. SOLUTION: This test device comprises a CH function achievement part achieving CH function and a CPU function achievement part achieving PCU function. (1) The CH function achievement part is operated in a non-test mode, and (2) when a switching instruction to a test mode is received, the CPU function achievement part is operated instead of the CH function achievement part. COPYRIGHT: (C)2008,JPO&INPIT
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