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Diagrams.

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Presentation on theme: "Diagrams."— Presentation transcript:

1 Diagrams

2

3 Bidirectional Buffer (74LS245)
Engr 4862 Microprocessors

4 Octal Latch

5 8086 maximum & minimum modes
The mode is controlled by MN/MX. Maximum mode is obtained by connecting MN/MX to low and minimum mode is by connecting it to high. Having two different modes (minimum and maximum) is used only 8086.

6

7 Fig: Minimum Mode Read Cycle

8 Fig: Minimum Mode Write Cycle

9 Maximum mode Maximum mode is designed to be used with a coprocessor exists in the system. All the control signals (except RD) are not generated by the microprocessor. But we still need those control signals. Solution: 8288.

10 Fig: Maximum Mode Configuration of 8086

11 Fig: Maximum Mode Read Cycle

12 Fig: Maximum Mode Write Cycle


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