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A) i) Describe the all pins of 82C55 programmable interface (PPI) IC. ii) Define command byte A & B of the command register in the 82C55 IC.
iii) Draw the proper circuit diagram of an 8-digit LED display interfaced to 8088
microprocessor through an 82C55 IC.

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A) i) Describe the all pins of 82C55 programmable interface (PPI) IC. ii) Define command byte A &am...
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