Controlling update of content of a programmable read-only memory

To control update of content in a programmable read-only memory in a system, the security status associated with the system is determined, where the security status is one of a secure mode and non-secure mode. In response to detecting that the system is in secure mode, a write to the programmable re...

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Bibliographische Detailangaben
Hauptverfasser: Bouchier, Paul H, Diamant, John R, Kaufman, Gerald J
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:To control update of content in a programmable read-only memory in a system, the security status associated with the system is determined, where the security status is one of a secure mode and non-secure mode. In response to detecting that the system is in secure mode, a write to the programmable read-only memory is enabled. In response to detecting that the system is in non-secure mode, a write to the programmable read-only memory is disabled.