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Thread: Reset interrupt

  1. 21-09-2013 #1
    anon10128
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    Reset interrupt

    Hi sir,

    What is the code written in ISR for RESET at 0x0000H? Why we have next interrupt that is external interrupt 0 at 0x0003H?

    Thank you.
    Last edited by anon10128; 21-09-2013 at 01:42 PM.
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  2. 21-09-2013 #2
    basant
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    Anon10128,

    What is the context? Which microcontroller programming are you referring to?

    -- Basant
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  3. 21-09-2013 #3
    anon10128
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    Sorry sir, I forgot to mention the microcontroller. It is 8051.

    Thank you.
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  4. 21-09-2013 #4
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    Anon10128,

    Quote Originally Posted by anon10128 View Post
    Hi sir,

    What is the code written in ISR for RESET at 0x0000H? Why we have next interrupt that is external interrupt 0 at 0x0003H?

    Thank you.
    Typical code at reset location is just 'LJMP MAIN'.

    Next location being reserved for external interrupt is a design choice which architects have made. I am not sure about the exact reason.

    -- Basant
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  5. 21-09-2013 #5
    anon10128
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    Thank you
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