ARM DDI 0301H Copyright © 2004-2009 ARM Limited. All rights reserved. 13-1
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Chapter 13
Debug
This chapter describes the processor debug unit, that assists development of application software,
operating systems, and hardware, and contains the following sections:
• Debug systems on page 13-2
• About the debug unit on page 13-3
• Debug registers on page 13-5
• CP14 registers reset on page 13-25
• CP14 debug instructions on page 13-26
• External debug interface on page 13-28
• Changing the debug enable signals on page 13-31
• Debug events on page 13-32
• Debug exception on page 13-35
• Debug state on page 13-37
• Debug communications channel on page 13-42
• Debugging in a cached system on page 13-43
• Debugging in a system with TLBs on page 13-44
• Monitor debug-mode debugging on page 13-45
• Halting debug-mode debugging on page 13-50
• External signals on page 13-52.