51795B datasheet(89/100 Pages) MICROCHIP

89 / 100 page

Glossary

 2010 Microchip Technology Inc.

DS51795B-page 89

One-to-One Project-Workspace Model

The most common configuration for application development in MPLAB IDE to is have

one project in one workspace. Select Configure>Settings, Projects tab and check “Use

one-to-one project-workspace model”.

Opcodes

Operational Codes. See Mnemonics.

Operators

Symbols, like the plus sign ‘+’ and the minus sign ‘-’, that are used when forming

well-defined expressions. Each operator has an assigned precedence that is used to

determine order of evaluation.

OTP

One Time Programmable. EPROM devices that are not in windowed packages. Since

EPROM needs ultraviolet light to erase its memory, only windowed devices are eras-

able.

Pass Counter

A counter that decrements each time an event (such as the execution of an instruction

at a particular address) occurs. When the pass count value reaches zero, the event is

satisfied. You can assign the Pass Counter to break and trace logic, and to any

sequential event in the complex trigger dialog.

Personal Computer or Program Counter.

PC Host

Any PC running a supported Windows operating system.

Persistent Data

Data that is never cleared or initialized. Its intended use is so that an application can

preserve data across a device reset.

Phantom Byte

An unimplemented byte in the dsPIC architecture that is used when treating the 24-bit

instruction word as if it were a 32-bit instruction word. Phantom bytes appear in dsPIC

hex files.

PIC MCUs

PIC microcontrollers (MCUs) refers to all Microchip microcontroller families.

PICkit 1, 2, and 3

Microchip’s developmental device programmers with debug capability through Debug

Express. See the Readme files for each tool to see which devices are supported.

PICSTART Plus

A developmental device programmer from Microchip. Programs 8-, 14-, 28-, and 40-pin

PIC microcontrollers. Must be used with MPLAB IDE software.

Plug-ins

The MPLAB IDE has both built-in components and plug-in modules to configure the

system for a variety of software and hardware tools. Several plug-in tools may be found

under the Tools menu.

51795B Datasheet(PDF) 89 Page - Microchip Technology

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