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how to detect single port memory address decoder fault?

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avelyn94

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Hi guys,
does anyone know how to detect address decoder fault as shown in picture below?
 

Fill memory with some suitable pattern and read it back. It is more complicated if you also want to find data bus errors.
The brute force approach to this is to use a "walking" pattern. You basically change one bit at time and verify the complete memory after each write.
That is probably overkill in most cases.
 

do i need to consider row and column address or only column address for address decoder fault?
 

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