BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING [0007]FIGS. 1A and 1B show examples of the configuration of an electronic instrument in accordance with one embodiment of the present invention; [0008]FIGS. 2A, 2B, 2C, and 2D are illustrative of isochronous transfer and asynchronous transfer; [0009]FIG. 3 shows an example of the configuration of the data transfer control device according to on