Storing a word in Memory:

That is similar process with fetching a word from memory.

• The required address is loaded into the MAR
• After that data to be written are loaded into MDR, and a write command is issued.
• If we suppose that the data word to be stored in the memory is in R2 and that the memory address is in R1, the Write operation needed the following sequence:
• MAR - [R1]
• MDR -[R2]
• Write
• Wait for the MFC

Move R2, (R1) requires the following sequence (signal):

R1out, MARin

R2out, MDRin. Write

MDRoutE,WMFC

 

Posted Date: 10/13/2012 6:45:29 AM | Location : United States

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