Interrupts

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Pins • INT3:0 Exercise: I want to clear the flag for INT1 (the others I don’t want to change). What value must I write to this register? 1/4/2010 14
Pins • INT3:0 Exercise: I want to clear the flag for INT1 (the others I don’t want to change). What value must I write to this register? Ans: 0000 0010 or $02 1/4/2010 15
Page 1 and 2: Microprocessor Fundamentals Topic 1
Page 3 and 4: Interrupts • Interrupts are async
Page 5 and 6: Maskable/Non-maskable • Interrupt
Page 7 and 8: EICRA INT3 - 0 • External Interru
Page 9 and 10: EICRA INT3 - 0 1/4/2010 Exercise: W
Page 11 and 12: Pins • INT3:0 External Interrupts
Page 13: Pins • INT3:0 When the appropriat
Page 17 and 18: Pins • Bits 7 - 4 External Interr
Page 19 and 20: Vectors The complete vector table i
Page 21 and 22: An Example: • So, let’s work th
Page 23 and 24: An Example: We must start our progr
Page 25 and 26: An Example: We need to write the in
Page 27 and 28: An Example: We must start our progr
Page 29 and 30: An Example: Then we must write the
Page 31 and 32: What happens? • So what happens w
Page 33: Summary • In this topic we: - Bec

Interrupts

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