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Draw timing diagram of memory read and memory write machine cycle in maximum mode and explain it.
written 6.1 years ago by gravatar for meghalikalyankar meghalikalyankar • 2.3k •   modified 5.1 years ago
microprocessors and peripherals
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written 6.1 years ago by gravatar for meghalikalyankar meghalikalyankar • 2.3k

Timing Diagram of Read and Write cycle in Maximum Mode

  • It is a multiprocessor mode. Along with 8086, there can be other processors like 8087 and 8089 in the circuit. Here MN/¯MX is connected to ground itself.
  • Since, there are multiple processors; ALE for the latch is given by 8288 bus controller. Instead of 8086 control signals are generated by bus controller 8288 using special decoding of status pins ¯(S0,) ¯(S1,) ¯S2.

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  • Since 8288 independently generates control signals, it needs a CLK from 8284 clock generator.
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