Electrical computers and digital processing systems: memory – Address formation – Address mapping
Reexamination Certificate
2006-10-17
2006-10-17
Bragdon, Reginald G. (Department: 2189)
Electrical computers and digital processing systems: memory
Address formation
Address mapping
C711S203000, C711S206000, C711S207000, C711S163000
Reexamination Certificate
active
07124274
ABSTRACT:
An apparatus for processing data, the apparatus comprising: a processor operable in a plurality of modes and either a secure domain or a non-secure domain including at least one secure mode being a mode in the secure domain; and at least one non-secure mode being a mode in the non-secure domain. When the processor is executing a program in a secure mode, the program has access to secure data which is not accessible when the processor is operating in a non-secure mode. The processor further includes a non-secure translation table base address register and a secure translation table base address register operable in the non-secure and secure domain, respectively, to indicate a region of memory storing either non-secure or secure domain memory mapping data defining how virtual addresses are translated to physical addresses within either the non-secure or secure domain.
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Belnet Lionel
Brochier Stephane Eric Sebastien
Chaussade Nicolas
Dornan Christopher Bentley
Mansell David Hennah
Arm Limited
Bragdon Reginald G.
Flournoy Horace
Nixon & Vanderhye P.C.
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