| 摘要 |
PROBLEM TO BE SOLVED: To provide a bus controller capable of appropriately extracting an interrupt signal from a bus sharing the interrupt signal and a data transaction signal. SOLUTION: When a bus state detection circuit (11a) detects a state wherein interrupt information cannot be extracted from the bus (6) sharing the interrupt signal and the data transaction signal during an interrupt notification such as of data deterioration or a protocol error, the interrupt information is prevented from being transmitted to a host bus (3). COPYRIGHT: (C)2004,JPO
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