Device for the protection of the access to memory words
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United States of America Patent
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-
Nov 2, 1999
Grant Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Dec 20, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The access to memory words of an integrated circuit is protected by the creation of a decision table that receives addresses of instruction words and/or data words to be protected and that receives also addresses of the control bits of a control word assigned to a word to be protected. It can be shown that this mode of action provides greater security through the use of a decision table made in wired circuit form as well as greater flexibility through the programmable quality of the control words assigned to each memory word to be controlled.
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