Memory Read and Memory Write - Fetch Execute

Read Operation
1. Control Unit sets up the Memory Address Register with the locaiton to be accessed
2. Control Unit activates the Read Line on the Control Bus
3. Storage location info are released onto the data bus
4. copy are placed in the Memory Data Register

1. __________________________________________________
2. Control Unit Activates the read line
3. contents are ________________________________________
4. copy of the information ________________________________
5. instruction is decoded and ______________________________


1. same as step 1 in Read Operation
3. contents are transferred via the Data Bus
4. same as our step 3 in Read Operation
5. instruction is decoded and executed!

Write Operation
1. Same as step 1 in read
2. MDR is given the data to be writte
3. control unit activates the write line
4. contents transferred to storage location via the data bus