MicroprocessorPU Spring 2023
a) Draw and explain block diagram of 8259A programmable interrupt controller in detail. b) Why do we need DMA in microprocessor? Explain the block diagram sg of DMA controller.
7- a) Draw and explain block diagram of 8259A programmable interrupt controller in detail.
- b) Why do we need DMA in microprocessor? Explain the block diagram sg of DMA controller.
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