The data packets used for communication between computers are called Ethernet frames. A frame, as shown in figure 1, begins with the Preamble and Start Frame Delimiter. Following which, each Ethernet frame continues with an Ethernet header featuring source and destination MAC addresses. The middle section of the frame is the data including any headers for other protocols carried in the frame. The frame ends with a 32-bit Cyclic Redundancy Check which is used to detect any corruption of data in transmission. In this problem, you will design a state machine to detect the beginning of an Ethernet frame. To simplify the problem, lets assume that the preamble is only one nibble (1100), and, thus any signal that starts by this sequence determines the beginning of an Ethernet frame.