| 摘要 |
Disclosed is a novel structure and process for detecting protocol errors on a communications bus. According to one aspect of the invention, a protocol error detector comprises a physical error detector, a sequential error detector, and a logical error detector, each detecting physical, sequential, and logical protocol violations, respectively, and signaling a bus transaction error when a protocol violation is detected. In one embodiment, the protocol error detector substantially simultaneously checks each bus transaction for physical, sequential, and logical protocol violations. In another embodiment, the protocol error detector signals a detected bus transaction protocol violation substantially coincident with the bus transaction.
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