Separate memories and address busses to store data and signature
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United States of America Patent
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Apr 2, 2013
Grant Date -
Feb 17, 2011
app pub date -
Aug 17, 2009
filing date -
Aug 17, 2009
priority date (Note) -
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Abstract
A programmable device employs an address and data corruption logic for data written to a first memory. A first signature is computed from the data stored in the first memory and stored in a second memory. When data is read from the first memory, the first signature stored in the second memory is read and compared with a second signature computed from the data read from the first memory. If the first and second signatures do not match, an error condition is indicated.
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