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.


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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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