Page 77 - CITS - Electronic Mechanic - TT - 2024
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ELECTRONICS MECHANIC - CITS




           Uses of Comparison of 8051 with its other family members
           Here are some specific uses of this comparison
           1  Selecting  the appropriate microcontroller:  By  comparing  the  features  of  the  8051  with  its  derivatives,
              engineers can choose the most suitable microcontroller for their application. They can evaluate the additional
              features and capabilities of each family member and determine which one best meets their requirements.

           2  Code migration: By understanding the similarities and differences between the 8051 and its family members,
              engineers can migrate code from one microcontroller to another. This can save time and effort in software
              development and testing.
           3  Upgrading existing systems: If an existing system is based on the 8051, engineers can compare it with the
              features of the newer family members and determine whether an upgrade is necessary. They can evaluate the
              additional features and benefits of the newer microcontrollers and decide whether an upgrade would improve
              the performance or functionality of the system.

           4  Learning about microcontroller architecture: By comparing the 8051 with its family members, students
              and hobbyists can learn about microcontroller architecture and understand the tradeoffs between different
              features and capabilities. This can help them make informed decisions when selecting a microcontroller for
              their own projects.
           5  Developing new applications: By understanding the additional features and capabilities of the 8051 family
              members, engineers can develop new applications that require specific features such as an on-chip flash
              memory,  expanded  interrupt  structure,  or  power-down  mode.  This  can  lead  to  the  development  of  more
              advanced and sophisticated embedded systems.
           Issues in Comparison of 8051 with its other family members
           There are also some potential issues that should be considered:
           1  Compatibility: While many of the family members are compatible with the 8051 in terms of instruction set
              and pinout, there may still be some differences that could affect code migration. Engineers should carefully
              evaluate the compatibility of the microcontrollers before attempting to migrate code.
           2  Development tools: Different microcontrollers may require different development tools, such as compilers,
              debuggers, and programmers. Engineers should ensure that the necessary tools are available and compatible
              with the microcontroller they select.
           3  Availability: Some family members may be more readily available than others, depending on the region or
              market. Engineers should consider the availability of the microcontroller when selecting a suitable option.

           4  Cost: The cost of the microcontroller may vary depending on its features and capabilities. Engineers should
              evaluate the cost-benefit of selecting a particular microcontroller based on the requirements of the application.
           5  Training  and support:  The  availability  of  training  and  support  resources  may  vary  depending  on  the
              microcontroller. Engineers should consider the availability and quality of training and support when selecting
              a microcontroller.
           6  Power consumption: While the 8051 family members are generally known for their low power consumption,
              some microcontrollers may consume more power than others due to their additional features and capabilities.
              Engineers  should  evaluate  the  power  consumption  of  the  microcontroller  to  ensure  that  it  meets  the
              requirements of the application.

            Register banks & their functioning


           SFRs & their configuration for different applications
           Registers are temporary storage locations inside any processor and a microcontroller that provide a fast way to
           store data and address of the memory location where the data is to be stored.

           If you want to manipulate data within CPU of microcontroller by performing addition, subtraction, and so on, we
           cannot do that directly in the memory, but to do it you need some registers to process and store the data.
           Microcontrollers contain several types of registers that can be classified according to their content or instructions
           that operate in them.


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                                    CITS : E & H - Electronics Mechanic - Lesson 34 - 42
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