This chapter describes the processor debug unit, that assists development of application software, operating systems, and hardware, and contains the following sections:
Debug systems
About the debug unit
Debug registers
CP14 registers reset
CP14 debug instructions
External debug interface
Changing the debug enable signals
Debug events
Debug exception
Debug state
Debug communications channel
Debugging in a cached system
Debugging in a system with TLBs
Monitor debug-mode debugging
Halting debug-mode debugging
External signals.