Once a LOCK bit is written to 1, ACCESSCTRL silently ignores writes from that master. LOCK is writable only by a Secure, Privileged processor or debugger.
LOCK bits are only writable when their value is zero. Once set, they can never be cleared, except by a full reset of ACCESSCTRL
Setting the LOCK bit does not affect whether an access raises a bus error. Unprivileged writes, or writes from the DMA, will continue to raise bus errors. All other accesses will continue not to.
| CORE0 | |
| CORE1 | |
| DMA | |
| DEBUG |