10.3.2. Control Signals During Execution

Try these first

1. 1.

   What does a control signal manage?

   • Data storage
   • Peripheral devices
   • Data flow within the CPU

   Hint

   Think about what directs actions within the CPU.

2. 2.

   True or False: Multiple registers can output simultaneously without issues.

   • True
   • False

   Hint

   Think about traffic lights; can two cars go at once?

3. 3.

   Suppose two registers simultaneously try to source data to the internal bus. Explain how control signals would prevent a problem.

   Hint

   Consider how traffic signals coordinate multiple lanes.

4. 4.

   Create a detailed sequence of control signals for the instruction 'ADD R1, R2' assuming R1 needs data from the internal bus.

   Hint

   Break the process down into logical steps!