10.3. Timing Sequence of Instructions

Try these first

1. 1.

   What is the role of the control bus?

   Hint

   Think about what facilitates communication in the CPU.

2. 2.

   What does MFC stand for?

   Hint

   Recall how the CPU knows when to proceed with operations.

3. 3.

   What is the significance of the control bus in a CPU's operation?

   • To execute arithmetic operations
   • To carry control signals between components
   • To store temporary data

   Hint

   Focus on what governs the communication within the CPU.

4. 4.

   True or False: Two registers can safely output to the internal CPU bus simultaneously.

   • True
   • False

   Hint

   Recall the principles of controlled data flow.

5. 5.

   Design a simple sequence that allows multiple registers to safely output to the ALU without causing contention. Outline the control signals needed.

   Hint

   Think about switching signals on and off strategically.

6. 6.

   Given a timing sequence diagram, identify what happens at each clock edge during a read operation and explain the significance of each.

   Hint

   Use the timing sequence to map out data flow step by step.