11.2. Store Instruction

Try these first

1. 1.

   What does the Memory Data Register (MDR) do?

   Hint

   Think about what happens during read and write operations.

2. 2.

   What signal indicates that a read operation is complete?

   Hint

   Focus on the role of the MF signal discussed.

3. 3.

   What does the Memory Address Register (MAR) do?

   • Stores data
   • Holds memory addresses
   • Controls signals

   Hint

   Refer to the role of the MAR.

4. 4.

   True or False: The MF signal is responsible for moving data from the MAR to the MDR.

   • True
   • False

   Hint

   Focus on what the MF signal is for.

5. 5.

   Design a sequence of operations for a CPU to read data from memory address 20, process it, and write the result back to memory address 30. Describe each control signal activations needed.

   Hint

   Consider the flow from read to process to write.

6. 6.

   Analyze how a timing conflict might occur when two operations attempt to access the bus simultaneously. Suggest solutions to avoid such conflicts.

   Hint

   Think about the importance of synchronization.