A method of transferring encoded data and an imaging device executing the method thereof are disclosed. The image signal processor according to an embodiment of the present invention has an encoding unit, which generates encoded image data by encoding, in accordance with a predetermined encoding method, image data corresponding to an electrical signal inputted from an image sensor, and a data output unit, which temporarily stores the image data encoded by the encoding unit and transfers the stored encoded image data to a receiving part. The data output unit can input a skip command, which makes the process of a following frame skip, to the image sensor or the encoding unit in case input start information of the following frame is inputted from the image sensor or the encoding unit while a preceding frame is processed by the encoding unit, the skip command. Therefore, it becomes possible to increase the process efficiency of the back-end chip and to reduce the power consumption.