Integrated CN bus node chip structure based on SOC technology

The invention relates to a CAN bus integrated circuit. Aiming at proposing an integrated CN bus node chip structure, simplifying the node design of a CAN bus communication system, reducing the difficulty of design and debugging for CAN bus communication system designers, and improving the stability and reliability of the system, the invention adopts the technical scheme that an integrated CN bus node chip based on an SOC technology consists of a master controller, a CAN bus protocol controller unit and a transceiver circuit unit, wherein the master controller is is used to perform register configuration for a CAN bus protocol controller and complete the read-out and write-in of data; the CAN bus protocol controller unit is used to implement CAN bus data link layer contents, including data framing, error detection and acceptance filtering; and the CAN transceiver circuit unit is used to realize CAN bus physical layer contents and complete the conversion between the physical bus level and the logic level. The C