(a) certain system has a 3-bit output N[2:0] which represents an integer in the range 0-7. The designer has decided to display its value seven in the LEDsdriven by active high signals l[1:7] where the number of lit LEDs corresponds tothe value of N (the first LED to be lit is given by L[1]). Draw a logic diagram foran encoder circuit that converts from N[2:0] to L[1:7] using a 3-to-8 decoderwith an active-high output and no more than eight 2-input OR gates

(b) Write the Verilog module for the 3-7 binary-unary converter described in (a)

(c) Write a test bench to test its operation