Debug Terminology
7-6
7.3 Debug Terminology
The following definitions will help you to understand the information in the rest
of this chapter:
- Background code. The body of code that can be halted during debug-
ging because it is not time-critical.
- Foreground code. The code of time-critical interrupt service routines,
which are executed even when background code is halted.
- Debug-halt state. The state in which the device does not execute back-
ground code.
- Time-critical interrupt. An interrupt that must be serviced even when
background code is halted. For example, a time-critical interrupt might
service a motor controller or a high-speed timer.
- Debug event. An action, such as the decoding of a software breakpoint
instruction, the occurrence of an analysis breakpoint/watchpoint, or a re-
quest from a host processor that can result in special debug behavior,
such as halting the device or pulsing one of the signals EMU0 or EMU1.
- Break event. A debug event that causes the device to enter the debug-
halt state.
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