| 摘要 |
PROBLEM TO BE SOLVED: To perform detection of occurrence of an error in an address signal and specification of a fault address line during a normal operation concerning a bus system and a bus failure coping method, and to, when an address fault is occurred, perform access successively even after the address fault is occurred in a memory area which has been accessed until that time. SOLUTION: An address signal transmitted from a bus master 1-1 is stored by an address latch/return part 1-21 of a bus slave 1-2, and the address signal is returned through the address bus to a bus master 1-1, and the bus master 1-1 collates the returned address signal by an address collation part 1-12, and specifies in which of address lines the error of the address signal has been occurred, and notifies the bus slave 1-2 of the information of the specified fault address line through a fault address notification line/redundant address line 1-3, and address line switching parts 1-14 and 1-23 of the bus master 1-1 and the bus slave 1-2 switch the fault address line to the redundant address line. COPYRIGHT: (C)2009,JPO&INPIT
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