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Arm Cortex-A55 Core Technical Reference Manual : AArch32 behavior

AArch32 behavior

When executing in AArch32 state in a particular mode, you can configure the MMU to perform hardware translation table walks using either the Short-descriptor translation table format, or the Long-descriptor translation table format. This is controlled by programming the Extended Address Enable (EAE) bit in the appropriate Secure or Non-secure Translation Table Base Control Register (TTBCR).

Note

Translations in Hyp mode are always performed with the Long-descriptor translation table format.