The invention discloses a communication bus signal receiving circuit and a chip, and relates to the technical field of communication. The communication bus signal receiving circuit comprises a fast pass circuit, a slow pass circuit and a comparison circuit, the fast pass circuit is connected between a communication bus receiving end and the comparison circuit, and the fast pass circuit is used for transmitting a received communication bus signal to the comparison circuit; the slow pass circuit is connected between the communication bus receiving end and the comparison circuit, and the slow pass circuit is used for carrying out delay processing on a received communication bus signal to obtain a delay signal and transmitting the delay signal to the comparison circuit; the comparison circuit identifies a rising edge and a falling edge of the communication bus signal according to a signal delay difference between the communication bus signal and the delay signal. According to the method, the rising edge and the falling edge of the signal on the communication bus can be accurately identified by designing the fast signal path and the slow signal path and utilizing the difference of signal delay, so that the accuracy of receiving and decoding the signal by the slave is improved.
本发明公开一种通信总线信号接收电路及芯片,涉及通信技术领域。该通信总线信号接收电路包括快通电路、慢通电路和比较电路,快通电路连接于通信总线接收端与比较电路之间,快通电路用于将接收到的通信总线信号传输至比较电路;慢通电路连接于通信总线接收端与比较电路之间,慢通电路用于将接收到的通信总线信号进行延迟处理得到延迟信号,并将延迟信号传输至比较电路;比较电路根据通信总线信号与延迟信号的信号延迟差异识别通信总线信号的上升沿和下降沿。本发明通过设计快慢两组信号通路,并利用信号延迟的差异能够准确识别通信总线上的信号上升沿和下降沿,从而提高从机接收和解码信号的准确性。
Communication bus signal receiving circuit and chip
一种通信总线信号接收电路及芯片
2024-08-30
Patent
Electronic Resource
Chinese
IPC: | H04B TRANSMISSION , Übertragung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr |
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