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I'm new to computer architecture. What is the full form of the SMMA flag? Where is it used? Please help me understand it with a brief description.

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for reference:… – quack quixote Mar 17 '10 at 8:36

The SMMA flag indicates whether a memory operation is already in progress. If it is 0, no memory operation is in progress. If it is 1, a memory operation is in progress. When the processor changes the state of SMMA from 0 to 1, the memory starts the operation. On completion of the operation, the memory control logic resets the flag. Obviously, this will be done after the memory access time is over. The MFC signal from memory can be used to reset this flag.


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seriously? a screenshot of the explanation? from the link i posted? not helpful. you could at least take the time to type in the quote, so the text is searchable or cut-n-paste-able. – quack quixote Mar 17 '10 at 9:00
I made a web search and found it, I did NOT take it from your post! If taking a screenshot and pasting it in an answer is a guilt, OK, then I'm guilty. Besides, I give the source at the bottom of my message. – Mehper C. Palavuzlar Mar 17 '10 at 9:14
ok, finding the link on your own is certainly fair. (it's the same page i linked to in the comment above; link is too complicated for me to eyeball as identical or not.) still, screenshots of text are not good. i'll take off the downvote when it's actual text. – quack quixote Mar 17 '10 at 9:19

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