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State purpose of interfacing 8259(PIC) to 8086. Explain interfacing of 8086(minimum mode) and 8259 (single mode).
written 7.1 years ago by gravatar for meghalikalyankar meghalikalyankar • 2.3k •   modified 6.2 years ago
microprocessors and peripherals
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written 7.1 years ago by gravatar for meghalikalyankar meghalikalyankar • 2.3k
  • PIC 8259 is a Programmable Interrupt Controller that can work with 8085, 8086 etc. It is used to increase the number of interrupts.
  • A single 8259 provides 8 interrupts while a cascaded configuration of 1 master 8259 and 8 slave 8259s can provide up to 64 interrupts.
  • 8259 can handle …

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