Method for determining interface timing of integrated circuit automatically and related machine readable medium thereof

A non-transitory machine readable medium having a program code stored therein, wherein when executed by a processor, the program code enables the processor to perform following steps:

• reading a netlist file and a timing constraint file of the integrated circuit, and determining a first interface port of the netlist file according to the netlist file and the timing constraint file;
• searching from the first interface port toward inside of the netlist file for the first flip-flop as a specific circuit element, and designating a path coupled between the first interface port and the first flip-flop as a first candidate path;
• backtracking from the first flip-flop toward the first interface port for finding out a path coupled between the first interface port and the first flip-flop, and designating the path as a second candidate path;
• cross-comparing the first candidate path with the second candidate path to obtain a common path;
• designating the common path as a first transmission path, and designating load on the common path as a load on the first transmission path;
• generating an interface circuit file according to the first transmission path and the load on the first transmission path;
• and
• calculating a first signal transmission time of the first transmission path according to the interface circuit file.