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aman
Joined: 25 Oct 2004
Posts: 143
Helped: 1
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 06 Jul 2008 13:03 associative memory |
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whzt is associative memory
help??
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svicent
Joined: 11 Jul 2001
Posts: 396
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| 06 Jul 2008 13:46 Re: associative memory |
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From Wikipedia, the free encyclopedia
Associative memory may refer to:
* a type of memory closely associated with neural networks such as BAM.
* a type of computer memory; see Content-addressable memory.
* an aspect of human memory; see Transderivational search.
I think that you are interested in the second option: Content-addressable memory (CAM). A CAM is designed such that the user supplies a data word and the CAM searches its entire memory to see if that data word is stored anywhere in it. If the data word is found, the CAM returns a list of one or more storage addresses where the word was found. For more information:
http://en.wikipedia.org/wiki/Content-addressable_memory
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the_edge
Joined: 19 Feb 2007
Posts: 180
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Location: Belgrade, Serbia
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| 09 Jul 2008 23:30 Re: associative memory |
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Associative or CAM memories are used to check wheeter the content of memory location match to input data.
Every CAM cell has one XOR circuit whitch is used to test cell content with input data. If they are a match, nothing happens on mactch line, since it is previously charged to vdd. If not, we get logical 0 on match line.
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