bossmonkey <PICLIST@MITVMA.MIT.EDU> wrote:

> If I write to PORTB as a whole, will I cause an INT interrupt?
>
> My guess:  No, INT samples the pin, not the latch.  The write will
> write to the latch only, and pins set as input (RB0, aka INT) will
> not be affected.

    Mick:

    Your guess is correct; writing to the port will not generate an
    INT interrupt.

> Aren't the interrupt flags set even when GIE is cleared?  Will an
> interrupt occur when GIE is then set?
>
> My guess:  I can't reason this one out from the databook.  I think
> that when GIE is set that any  interrupts with their enable and
> flag bits will cause an interrupt to occur
>
> Right?

    Right again.

    -Andy

=== Andrew Warren - fastfwd@ix.netcom.com
=== Fast Forward Engineering - Vista, California
=== http://www.geocities.com/SiliconValley/2499