Method of controlling access to control registers of a...

Details Method of controlling access to control registers of a... Method of controlling access to control registers of a...

2008-07-15

2008-07-15

Barrón, Jr., Gilberto (Department: 2132)

Information security

Access control or authentication

Authorization

C726S027000, C711S163000, C713S166000

Reexamination Certificate

active

07401358

ABSTRACT:
A method of controlling access to a control register of a microprocessor. The method of controlling access to a control register of a processor having a normal execution mode and a secure execution mode may include storing state and mode information in the control register, allowing a software invoked write access to modify the state and mode information within the control register during the normal execution mode and selectively inhibiting the software invoked write access during the secure execution mode.

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