Externally generated errors during data read are always synchronous. The address captured in the DFAR matches
the address which generated the external abort.
9.5.6.2 Synchronous and Asynchronous Aborts
Chapter 4, System Control in the Cortex-A5 Technical Reference Manual describes synchronous and
asynchronous aborts, their priorities, and the IFSR and DFSR. To determine a fault type, read the DFSR for a data
abort or the IFSR for an instruction abort.
The processor supports an Auxiliary Fault Status Register for software compatibility reasons only. The processor
does not modify this register because of any generated abort.
9.5.7
MMU Software Accessible Registers
The system control coprocessor registers, CP15, in conjunction with page table descriptors stored in memory,
control the MMU.
Access all the registers with instructions of the form:
MRC p15, 0, <Rd>, <CRn>, <CRm>, <Opcode_2>
MCR p15, 0, <Rd>, <CRn>, <CRm>, <Opcode_2>
CRn is the system control coprocessor register. Unless specified otherwise, CRm and Opcode_2 Should Be Zero.
SAMA5D3 Series [DATASHEET]
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Atmel-11121F-ATARM-SAMA5D3-Series-Datasheet_02-Feb-16