Intel mcs-48 manual Intellec Development System, Production

INTRODUCTION

also provides 1K of writeable program memory which may be used to debug user programs. A multiple single step feature is also provided in which the processor steps through its program dumping all internal contents to external RAM where it may be later displayed or typed out on an external terminal. Paper tape input and output in Intel'shexadecimal format is also available through the TTY.

1.3.6 Intellec Development System

The Intellec Microcomputer Development System is a modular development system which can be expanded as necessary to meet the requirements of your design cycle. The system consists of the processor unit which is based on Intel's8080A microprocessor, and several optional units such as the UPP Universal PROM Programmer, the PTR High Speed Paper tape reader, the DOS Disk Operating System, and the Intellec CRT terminal.

To support the development of MCS-48 systems a macro-assembler ASM 48 is available for the Intellec System as well as a personality module for the UPP which will program the EPROM of the 8748. Also available is in-circuit emulation capability with ICE·49which will allow emulation and debug of user's8048 application programs on the 8080A-based Intellec Development System.

The Intellec system is a flexible high performance development system which can support Intel'svarious microcomputer fami- lies with various optional modules. The

macro-assembler and text editor programs provided allow the designer to write and edit his programs in assembly language and then generate the machine language output necessary to program the 8748 EPROM. The availability of a high speed CRT and a diskette operating system eliminates the laborious input and output of paper tape files normally required during the assembly process. Finally, ICE 48 allows the user to extend the resources of his entire Intellec system into the 8048 socket of his own system and use all its emulation, debug, and display facilities directly.

1.3.7 Production

Once a working program has been achieved, a preproduction phase usually follows where several prototype systems are evaluated in simulated situations or in actual operation in the field. During this period the use of the 8748 EPROM allows quick alteration of the application program when problems or suggested changes arise. Depending on the magnitude and number of future changes anticipated, the first production units may also be shipped with EPROM processor. However, to achieve the maximum cost reduction potential in high volume appli- cations, a conversion to the 8048 ROM is usually necessary. This is an easy transition since the 8048 and 8748 are pin and machine code compatible equivalents. The user merely develops a hexadecimal tape of his 8748 program memory contents using his Intellec System or PROMPT 48 development aid and sends it to Intel along with his 8048 order. As the 8048 ROM'sarrive they can immediately replace the 8748 EPROMs.

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