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The processor supports two modes of operation, Thread mode and Handler mode:
The processor enters Thread mode on Reset, or as a result of an exception return. Privileged and Unprivileged code can run in Thread mode.
The processor enters Handler mode as a result of an exception. All code is privileged in Handler mode.
| Copyright © 2005-2008, 2010 ARM Limited. All rights reserved. | ARM DDI 0337I |
| Non-Confidential | |
| PDF version | |
| Home > Programmers Model > Modes of operation and execution > Operating modes |