Asynchronous communication interface circuit and communication method

The invention discloses an asynchronous communication interface circuit and a communication method, and relates to the field of chip simulation debugging. According to the asynchronous communication parallel slave interface, external interface signals are converted into internal interface signals, and the communication function of an internal circuit and peripheral equipment is achieved. The interface circuit comprises seven parts including the interface control module, the data receiving module, the data sending module, the data verification module, the exception handling module, the data receiving RAM and the data sending RAM, the data communication function is supported, data verification and exception handling are also supported, and the reliability of interface communication is improved. The interface circuit serves as a slave interface to support the transmission request to the master device, and therefore the function of actively uploading data is achieved. The interface circuit is suitable for functio