MBIST/RAMBIST testing.

[thoughtbox]

Does anybody know what a "double read" is during MBIST/RAMBIST testing? How does it differ from a single read, what is the additional coverage that can be obtained with this approach.
Thanks

 

[ads-ee]

Take a look at the following excerpt from High Performance Memory Testing: Design Principles, Fault Modeling and Self-Test By R. Dean Adams
https://books.google.com/books?id=-mLFF3UmnWUC&pg=PA197&lpg=PA197&dq=bist+double+read+test&source=bl&ots=M8cCf41z1c&sig=i8U3dl2P7ffRN4tDwe4tIFBqpas&hl=en&sa=X&ei=JCVHU5zFC6H7yAGvjoG4Cw&ved=0CFAQ6AEwBQ#v=onepage&q=bist%20double%20read%20test&f=false

 

[thoughtbox]

Hi ads-ee, thanks for the thought.. I did not know I could do a google books search. Great source going forward. However, unfortunately, the book in this instance does not address my question.. unfortunately.