The Hardware Structure of 8086


  • The differences between 8086 and 8088.
  • The pin functions of 8086 in the minimum and maximum modes.
  • The use of address latches and data buffers in an 8086 based system.
  • The concept of machine cycles and the associated bus timings of 8086.
  • The reason for using the bus controller IC in a maximum mode system.
  • How an 8086 is used in the maximum mode.
  • To calculate instruction timing and thus create delay loops.

We have so far dealt exclusively with the programming aspects of 8086. It is now time to take a look into the hardware aspects of the processor.

6.1 | Pin Configuration

We will try to understand the processor in terms of its hardware, which includes the pin configuration, ...

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