Nesting Depth
The maximum level to which macros can include other macros.
Node
MPLAB IDE/MPLAB X IDE project component.
Non-Extended Mode (PIC18 MCUs)
In Non-Extended mode, the compiler will not utilize the extended instructions nor the indexed with literal offset
addressing.
Non Real Time
Refers to the processor at a breakpoint or executing single-step instructions or MPLAB IDE/MPLAB X IDE being run
in simulator mode.
Non-Volatile Storage
A storage device whose contents are preserved when its power is off.
NOP
No Operation. An instruction that has no effect when executed except to advance the program counter.
Object Code/Object File
Object code is the machine code generated by an assembler or compiler. An object file is a file containing machine
code and possibly debug information. It may be immediately executable or it may be relocatable, requiring linking
with other object files, e.g., libraries, to produce a complete executable program.
Object File Directives
Directives that are used only when creating an object file.
Octal
The base 8 number system that only uses the digits 0-7. The rightmost digit counts ones, the next digit counts
multiples of 8, then 8
2
= 64, etc.
Off-Chip Memory
Off-chip memory refers to the memory selection option for the PIC18 device where memory may reside on the target
board, or where all program memory may be supplied by the emulator. The Memory tab accessed from
Options>Development Mode provides the Off-Chip Memory selection dialog box.
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 erasable.
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.
Glossary
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2020 Microchip Technology Inc.
User Guide
DS50002751D-page 75
