| 摘要 |
A NAK register, for storing negative acknowledgment data in the case where a transmission has not been received normally, is newly installed as an RSP register other than a ACK register. By controlling the delivery of reception response (RSP) from these registers according to a multi-destination communication signal and an error detection signal at an RSP control circuit, it becomes possible to announce occurrence of a reception error and an overrun error at the reception side terminal to transmission side terminals and the other reception side terminals. Thereby, there exists reception response from reception side terminals, in a communication frame at multi-destination communication, and a multiplex communication apparatus can be obtained, which can detect whether or not all of a plurality of reception side terminal have received a transmission normally.
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