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Write a brief note on programmable peripheral interface (PPI) IC 8255 and its modes of Operation.
written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.1 years ago by gravatar for sagarkolekar sagarkolekar ★ 11k
microprocessors and microcontrollers
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written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k
  1. The 8255 is a programmable peripheral interface i.e. PPI 8255.
  2. It is a general purpose programmable parallel I/O device.
  3. It contains 3 I/O ports which can be programmed in different modes.
  4. To program the function to all three I/O ports it contains a register called as control register. The control …

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