14.6.6 External Aborts

External memory errors are defined as those that occur in the memory system rather than those that are detected by the MMU. External memory errors are expected to be extremely rare. External aborts are caused by errors flagged by the CPU system bus interfaces when the request goes external to the Cortex-A5 processor. External aborts can be configured to trap to Monitor mode by setting the EA bit in the Secure Configuration Register. For more information, see Cortex-A5 Technical Reference Manual.