10.5.1. Watchpoint debug events

In the Cortex-A15 MPCore processor, watchpoint debug events are always synchronous. Memory hint instructions and cache clean operations do not generate watchpoint debug events. Store exclusive instructions generate a watchpoint debug event even when the check for the control of exclusive monitor fails.

For watchpoint debug events, the value reported in DFAR is guaranteed to be no lower than the address of the watchpointed location rounded down to a multiple of 16 bytes.

Copyright © 2011-2012 ARM. All rights reserved.ARM DDI 0438G