The x86 Microprocessors: 8086 to Pentium, Multicores, Atom and the 8051 Microcontroller, 2nd Edition

6

The Hardware Structure of 8086

IN THIS CHAPTER, YOU WILL LEARN

• 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, ...