The 16-Bit Microprocessor

  • Thomas Flik
  • Hans Liebig


In Chapter 1 we described 16-bit microprocessors in a very simplified way, so as to illustrate their basic behavior. The processors that are available on the market show a more complex structure and a higher performance when compared to our model. This is also true for 8-bit microprocessors. Some of the features that allow distinction between 16-bit and 8-bit microprocessors are listed below:
  • longer word length of 16 bits and therefore 16-bit data paths,

  • larger number of data formats (bit, half byte, byte, word, double word, byte string and word string),

  • general purpose register set,

  • longer address with up to 24 bits,

  • larger number of addressing modes,

  • two-address instructions,

  • more powerful instruction set (multiplication and division instructions, instructions for memory management, string and block processing instructions)

  • universal trap and interrupt system,

  • different modes (system mode, user mode),

  • easy change of status,

  • privileged instructions,

  • support for multiprocessor configurations.


Register File User Mode Program Counter Instruction Word Interrupt Handling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • Thomas Flik
    • 1
  • Hans Liebig
    • 1
  1. 1.Institut für Technische InformatikTechnische Universität BerlinBerlin 10Germany

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