Protecting access to microcontroller memory blocks
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 4, 2005
Grant Date -
N/A
app pub date -
May 14, 2001
filing date -
Oct 26, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A microcontroller provides protection to memory blocks in an embedded memory. A set of rules such as security levels mapped to memory blocks are stored in a nonvolatile supervisory memory. An algorithm for application of the rules is stored in a supervisory ROM. When a read or write operation is to be carried out, the rules are applied according to the algorithm in order to authorize or reject the read or write operation. Security levels can be modified, but only according to defined rules. In one embodiment, the security levels can only be increased.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully