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Diagrams
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Bidirectional Buffer (74LS245)
Engr 4862 Microprocessors
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Octal Latch
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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.
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Fig: Minimum Mode Read Cycle
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Fig: Minimum Mode Write Cycle
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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.
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Fig: Maximum Mode Configuration of 8086
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Fig: Maximum Mode Read Cycle
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Fig: Maximum Mode Write Cycle
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