11.4.3. Lock Access Register, 0xFB0 [31:0]

The Lock Access Register is write-only. This register enables write access to component registers. A write of 0xC5ACCE55 enables further write access to this component. An invalid write has the effect of removing write access. This Lock Access Mechanism can be bypassed by setting PADDRDBG31, the highest APB Address line, to HIGH. In this case, the entire device can be accessed.

Copyright © 2004-2009 ARM. All rights reserved.ARM DDI 0314H
Non-Confidential