Datasheet

Glossary
 2013 Microchip Technology Inc. DS52085A-page 151
Profile
For MPLAB SIM simulator, a summary listing of executed stimulus by register.
Program Counter
The location that contains the address of the instruction that is currently executing.
Program Counter Unit
ALU30 – A conceptual representation of the layout of program memory. The program
counter increments by 2 for each instruction word. In an executable section, 2 program
counter units are equivalent to 3 bytes. In a read-only section, 2 program counter units
are equivalent to 2 bytes.
Program Memory
IDE – The memory area in a device where instructions are stored. Also, the memory in
the emulator or simulator containing the downloaded target application firmware.
ALU30, C30 – The memory area in a device where instructions are stored.
Project
A project contains the files that are needed to build an application (source code, linker
script files, etc.) along with their associations, to various build tools and build options.
Prologue
A portion of compiler-generated code that is responsible for allocating stack space, pre-
serving registers and performing any other machine-specific requirement that is
specified in the runtime model. This code executes before user code for a given
function.
Prototype System
A term referring to a user's target application, or target board.
PWM Signals
Pulse Width Modulation Signals. Certain PIC MCU devices have a PWM peripheral.
Qualifier
An address or an address range that is used by the Pass Counter or as an event before
another operation in a complex trigger.
Radix
The number base, hex, or decimal, used in specifying an address.
Random Access Memory (RAM)
Data emory in which information can be accessed in any order.
Raw Data
The binary representation of code or data associated with a section.
Read-Only Memory (ROM)
Memory hardware that allows fast access to permanently stored data, but prevents
addition to, or modification of, the data.
Real Time
When an in-circuit emulator or debugger is released from the Halt state, the processor
runs in Real Time mode and behaves exactly as the normal chip would behave. In Real
Time mode, the real time trace buffer of an emulator is enabled and constantly captures
all selected cycles, and all break logic is enabled. In an in-circuit emulator or debugger,
the processor executes in real time until a valid breakpoint causes a halt, or until the
user halts the execution.
In the simulator, real time simply means execution of the microcontroller instructions as
fast as they can be simulated by the host CPU.