51795B datasheet(83/100 Pages) MICROCHIP

83 / 100 page

Glossary

 2010 Microchip Technology Inc.

DS51795B-page 83

Frame Pointer

A pointer that references the location on the stack that separates the stack-based

arguments from the stack-based local variables. Provides a convenient base from

which to access local variables and other values for the current function.

Free-Standing

An implementation that accepts any strictly conforming program that does not use

complex types and in which the use of the features specified in the library clause (ANSI

‘89 standard clause 7) is confined to the contents of the standard headers <float.h>,

<iso646.h>, <limits.h>, <stdarg.h>, <stdbool.h>, <stddef.h> and

<stdint.h>.

GPR

General Purpose Register. The portion of device data memory (RAM) available for

general use.

Halt

A stop of program execution. Executing Halt is the same as stopping at a breakpoint.

Heap

An area of memory used for dynamic memory allocation where blocks of memory are

allocated and freed in an arbitrary order determined at runtime.

Hex Code

Executable instructions stored in a hexadecimal format code. Hex code is contained in

a hex file.

Hex File

An ASCII file containing hexadecimal addresses and values (hex code) suitable for

programming a device.

Hexadecimal

The base 16 numbering system that uses the digits 0-9 plus the letters A-F (or a-f). The

digits A-F represent hexadecimal digits with values of (decimal) 10 to 15. The rightmost

digit counts ones, the next counts multiples of 16, then 162 = 256, etc.

High Level Language

A language for writing programs that is further removed from the processor than

assembly.

ICD

In-Circuit Debugger. MPLAB ICD and PICkit (with Debug Express), are Microchip’s

in-circuit debuggers.

ICE

In-Circuit Emulator. MPLAB ICE 2000 and MPLAB ICE 4000 system are Microchip’s

classic in-circuit emulators. MPLAB REAL ICE system is Microchip’s next-generation

in-circuit emulator.

ICSP™

In-Circuit Serial Programming. A method of programming Microchip embedded

devices using serial communication and a minimum number of device pins.

IDE

Integrated Development Environment. MPLAB IDE is Microchip’s integrated

development environment.

Identifier

A function or variable name.

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