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The major differences between the minimum and maximum mode are as highlighted in the table below:

maximum vs minimum mode of operation of the 8086 microprocessor
Minimum modeMaximum mode
In minimum mode, there can only be one processor, i.e. 8086In maximum mode, there can be multiple processors, i.e. 8087 and 8089.
The pin signal (MN/MX) value of 1 is used to indicate the minimum mode.The pin signal (MN/MX) value of 0 is used to indicate the maximum mode.
ALE (Address Latch Enable) is given by the 8086 as it is the only processor in the circuit.ALE (Address Latch Enable) is given by 8288 bus controller as there can be multiple processors in the circuit.
The Data Enable (DEN) and Data Transmit and Receive (DT/R) for trans-receivers are given by 8086 itself.The Data Enable (DEN) and Data Transmit and Receive (DT/R) for trans-receivers are given by the 8288 bus controller.
Direct control signals M/IO, RD and WR are given by 8086.Instead of control signals, each processor generates status signals called S2, S1 and S0.
Control signals M/IO, RD and WR are decoded by a 3:8 decoded like 74138.Status signals S2, S1 and S0 are decoded by a bus controller like 8288 to produce control signals.
INT A is given by 8086 in response to an interrupt on INTR line.INT A is given by 8288 bus controller in response to an interrupt on INTR line.
HOLD and HLDA signals are used for bus request with a DMA controller like 8237.RQ/GT lines are used for bus requests by other processors like 8087 or 8089.
The circuit is simpler.The circuit is more complex.
Multiprocessing cannot be performed hence performance is lower.As multiprocessing can be performed, it can give a very high performance.

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