DS80C320-MCG Datasheet, PDF (175/175 Pages) Dallas Semiconductor – High-Speed Microcontroller User Guide

High-Speed Microcontroller User’s Guide
SECTION 18: MICROCONTROLLER DEVELOPMENT SUPPORT
TECHNICAL SUPPORT
Dallas Semiconductor has a wide range of services designed to support its customers. Microcontroller
applications engineers are available Monday through Friday (excluding holidays) to provide technical
support from 8 am to 5 pm Central Standard Time. They can be reached by telephone and electronic mail
at the numbers shown.
Application Support: [phone]
[phone] (fax)
Email:
[e-mail]
Dallas Semiconductor maintains a presence on the Internet, with both a World Wide Web home page and
an anonymous FTP site. Data sheets are subject to revision, and these services contain the most current
data sheet information available. The home page has access to company information, data sheets,
application notes, and product information. The ftp server hosts data sheets, application notes, and
software examples.
World Wide Web Home page:
http://www.dalsemi.com
Microcontroller products home page:http://www.dalsemi.com/Prod_info/Micros/
Anonymous ftp:
ftp.dalsemi.com
DEVELOPMENT TOOLS
Because the High-Speed Microcontroller family was designed for maximum compatibility with existing
8051 microcontrollers, users will find that most of their existing 8051 tools will work with our products.
To aid our customers, Dallas Semiconductor maintains a list of development tool vendors on its website
at http://www.dalsemi.com/microtools.html. This page is very useful when attempting to locate
commonly used microcontroller aids such as compilers, test clips, sockets, programmers, programming
adapters, reference books, emulators, crystals and development boards.
SOFTWARE COMPATIBILITY
Dallas Semiconductor microcontrollers execute the 8051 instruction set and are object code compatible
with other 8051-based products. The special features of Dallas Semiconductor microcontrollers are
accessed via Special Function Registers unique to our products, but the devices do not use any new
instructions. The new Special Function Registers can be easily defined in the user's software with
EQUATE statements or in a setup file. Once defined, these new Special Function Registers receive the
same treatment as any of the original 8051 registers. This means that Dallas Semiconductor
microcontrollers are compatible with almost every 8051-based software tool available.
HIGH-LEVEL LANGUAGE COMPILERS
Like assemblers, compilers must be informed of the existence and location of the Special Function
Registers unique to Dallas Semiconductor microcontrollers. When using C, it is commonly necessary to
identify the starting address for various read/write segments such as XDATA and Stack.
In addition, it is recommended that the large memory model be used in conjunction with C Compilers.
This places the stack in off-chip SRAM. Microcontroller systems usually have an abundance of such
SRAM compared to ROM-based systems. While off-chip stack results in slower execution time, the stack
size becomes virtually unlimited.
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