Homework #8

• Complete the answers using the Canvas Quiz
• Digital copies of all code, testbenches, waveforms, etc will be submitted via Canvas and BitBucket.

1. Design the control unit for the keyboard scancode converter started in lecture 11. Integrate it into the code and run a testbench showing two buttons pressed - not the same ones that the existing testbench presses. Turn in:
   • Hand-drawn diagram showing how all the files given in Lecture 12 are connected together. Using the testbench (lec12_tb) as the top level entity and interconnecting the keyboard, lec12 (Lec 12 entity), lec12_cu (control unit), and lec12_dp (datapath).
   • Hand-drawn state diagram for the control unit.
   • The complete control word table for your design.
   • A digital copy via Canvas and BitBucket of the VHDL describing your control unit (include a proper header).
   • A digital image via Canvas and BitBucket of your timing diagram/waveform in Vivado Simulator showing the following signals - remove all other signals.
     • clk
     • reset
     • keyboard clock
     • keyboard data
     • control unit state
     • Status word
     • Control word
     • busy signal
     • shift register
     • scan code
     • keyCntr