METHOD AND DEVICE FOR FILTERING TRANSACTIONS FOR AN ON-CHIP SYSTEM
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United States of America Patent
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app pub date -
Mar 5, 2014
filing date -
Mar 6, 2013
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Abandoned
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Abstract
The invention in particular concerns a method for filtering access to an on-chip system comprising at least one master module, at least one slave module and a bus, the bus comprising at least one slave port, at least one master port and means for interconnection between at least one of the slave ports and at least one of the master ports, the method being characterised in that it comprises the following steps implemented when an access request is routed from a master module connected to a slave port to a slave module connected to a master port: intercepting an item of source information on the link between the master port and the slave module before the slave module receives the request, searching for the item of source information in at least one access control list controlling access to the slave module, blocking the request such that the slave module is unaware of the requested access if the item of source information is not found in the at least one access control list.
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