Part IV An early method of telegraph communication was based on the Morse code. This code uses patterns of short and long pulses to represent a message. Each letter is represented as a sequence of dots (a short pulse), and dashes (a long pulse). For example, the first eight letters of the alphabet have the following representation: h HDL verilos A В C D F G H Design and implement a circuit that takes as input one of the first eight letters of the alphabet and displays the Morse code for it on a red LED. Your circuit should use switches SW2-0 and pushbuttons KEY1-0 as inputs. When a user presses KEY1, the circuit should display the Morse code for a letter specified by SW2-0 (000 for A, 001 for B, etc.), using 0.5-second pulses to represent dots, and 1.5-second pulses to represent dashes. Pushbutton KEY, should function as an asynchronous reset. A high-level schematic diagram of the circuit is shown in Figure 2. Hint: Use a counter to generate 0.5-second pulses, and another counter to keep the LEDRO light on for either 0.5 or 1.5 seconds.