Datasheet

Glossary

Memory management unit

Hardware that controls caches and access permissions to blocks of memory, and

translates virtual to physical addresses.

MMU See Memory Management Unit.

Multi-ICE Multi-processor in-circuit emulator. ARM registered trademark.

Processor An actual processor, real or emulated running on the target. A processor always has at

least one context of execution.

Processor Status Register

See Program Status Register.

Profiling Accumulation of statistics during execution of a program being debugged, to measure

performance or to determine critical areas of code.

Call-graph profiling provides great detail but slows execution significantly. Flat

profiling provides simpler statistics with less impact on execution speed.

For both types of profiling you can specify the time interval between

statistics-collecting operations.

Program Status Register

Program Status Register (PSR), containing some information about the current program

and some information about the current processor. Often, therefore, also referred to as

Processor Status Register.

Is also referred to as Current PSR (CPSR), to emphasize the distinction between it and

the Saved PSR (SPSR). The SPSR holds the value the PSR had when the current

function was called, and which will be restored when control is returned.

Protection Unit Hardware that controls caches and access permissions to blocks of memory.

PSR See Program Status Register.

PU See Protection Unit.

RDI See Remote Debug Interface.

Remote Debug Interface

The Remote Debug Interface (RDI) is an ARM standard procedural interface between

a debugger and the debug agent. RDI gives the debugger a uniform way to communicate

with:

a debug agent running on the host (for example, ARMulator)

a debug monitor running on ARM-based hardware accessed through a communication

link (for example, Angel)