PIC18F2550-I/SP Microchip Technology Inc., PIC18F2550-I/SP Datasheet - Page 360

• Manufacturer Part Number: PIC18F2550-I/SP
• Description: Microcontroller; 32 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2550-I/SP

• A/d Inputs: 10-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 23
• Interface: I2C/SPI/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 32K Bytes
• Ram Size: 2K Bytes
• Speed: 48 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2455/2550/4455/4550
27.2
The MPASM Assembler is a full-featured, universal
macro assembler for all PICmicro MCUs.
The MPASM Assembler generates relocatable object
files for the MPLINK Object Linker, Intel
files, MAP files to detail memory usage and symbol
reference, absolute LST files that contain source lines
and generated machine code and COFF files for
debugging.
The MPASM Assembler features include:
• Integration into MPLAB IDE projects
• User-defined macros to streamline
• Conditional assembly for multi-purpose
• Directives that allow complete control over the
27.3
The MPLAB C18 and MPLAB C30 Code Development
Systems are complete ANSI C compilers for
Microchip’s PIC18 family of microcontrollers and
dsPIC30F family of digital signal controllers. These
compilers provide powerful integration capabilities,
superior code optimization and ease of use not found
with other compilers.
For easy source level debugging, the compilers provide
symbol information that is optimized to the MPLAB IDE
debugger.
27.4
The MPLINK Object Linker combines relocatable
objects created by the MPASM Assembler and the
MPLAB C18 C Compiler. It can link relocatable objects
from precompiled libraries, using directives from a
linker script.
The MPLIB Object Librarian manages the creation and
modification of library files of precompiled code. When
a routine from a library is called from a source file, only
the modules that contain that routine will be linked in
with the application. This allows large libraries to be
used efficiently in many different applications.
The object linker/library features include:
• Efficient linking of single libraries instead of many
• Enhanced code maintainability by grouping
• Flexible creation of libraries with easy module
DS39632C-page 358
assembly code
source files
assembly process
smaller files
related modules together
listing, replacement, deletion and extraction
MPASM Assembler
MPLAB C18 and MPLAB C30
C Compilers
MPLINK Object Linker/
MPLIB Object Librarian
®
standard HEX
Preliminary
27.5
MPLAB ASM30 Assembler produces relocatable
machine code from symbolic assembly language for
dsPIC30F devices. MPLAB C30 C Compiler uses the
assembler to produce its object file. The assembler
generates relocatable object files that can then be
archived or linked with other relocatable object files and
archives to create an executable file. Notable features
of the assembler include:
• Support for the entire dsPIC30F instruction set
• Support for fixed-point and floating-point data
• Command line interface
• Rich directive set
• Flexible macro language
• MPLAB IDE compatibility
27.6
The MPLAB SIM Software Simulator allows code
development in a PC-hosted environment by simulat-
ing the PICmicro MCUs and dsPIC
instruction level. On any given instruction, the data
areas can be examined or modified and stimuli can be
applied from a comprehensive stimulus controller.
Registers can be logged to files for further run-time
analysis. The trace buffer and logic analyzer display
extend the power of the simulator to record and track
program execution, actions on I/O, as well as internal
registers.
The MPLAB SIM Software Simulator fully supports
symbolic debugging using the MPLAB C18 and
MPLAB C30 C Compilers, and the MPASM and
MPLAB ASM30 Assemblers. The software simulator
offers the flexibility to develop and debug code outside
of the laboratory environment, making it an excellent,
economical software development tool.
MPLAB ASM30 Assembler, Linker
and Librarian
MPLAB SIM Software Simulator
© 2006 Microchip Technology Inc.
®
DSCs on an