Lpc2000

Just a reference:
http://www.standardics.philips.com/support/documents/microcontrollers/pdf/an10414.pdf


Jayasooriah wrote:

> Dear Robert,
>
> In the FAQ you referred to, on "ARM7DTMI-S Core", to the FAQ:
>
> "Can spurious interrupts occur in the LPC200?",
>
> Your answer is:
>
> "Yes, spurious interrupts can occur in any ARM7 device that has 
> implemented
> the ARM Primecell Vectored Interrupt Controller (VIC)."
>
> I tried looking for a reference to this in the ARM site but cannot 
> find any.
>
> A search on "spurious" at the ARM web site yields 11 hits but these 
> appear
> not relevant to the VIC and spurious interrupt problem with the ARM 
> design
> that you seem to allude us to.
>
> I also did a brief search for information on the web relating to spurious
> interrupts, and all the examples seem to point to LPC one way or another.
>
> A spurious interrupt is a hardware interrupt which is generated by system
> errors (http://www.answers.com/topic/interrupt-1), 
> <http://www.answers.com/topic/interrupt-1%29,> and systems with
> spurious interrupts in general do not meet compliance requirements.
>
> Please clarify:
>
> 1/  Is this spurious interrupt problem an error in LPC implementation of
> VIC or is it an error in ARM Primecell VIC specifications itself?
>
> 2/  Can you tell us if there are any other ARM cores with VIC that also
> suffer from spurious interrupts problem that the LPC suffers from?
>
> Kind regards,
>
> Jaya
>
> PS:  I realise there has been discussion previously on spurious 
> interrupts,
> but none seem to throw any light on whether this is a problem specific to
> LPC or it has to do with with ARM VIC design itself.
>
> --- In lpc2000@yahoogroups.com, "philips_apps" <philips_apps@...> wrote:
> >
> > Hi,
> >
> > have a look at the FAQ here:
> >
> > http://www.standardics.philips.com/support/faq/microcontrollers/
> >
> > I also added a link in the link section named
> > "Philips FAQ for LPC2000 devices"
> >
> > Regards, Robert
>
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