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System state after a reset

State

ARM

Mode

Supervisor

Privilege level

1

Exceptions

All disabled

Security level

Secure

MMUs

Both disabled

The MMU's TLB entries have random content MMU: disabled with TLB disabled. Contents of TLB entries are random so one must at least disable all TLB entries before enabling the TLBMMU. With the MMU disabled all instruction fetches are assumed to be to Normal memory while data accesses are assumed to be to Ordered memory.

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