Lpc2000

Hi,

Is it possible to read pins with IO0PIN register even is they are mapped 
to other functions than the GPIO? As far as I know, this is not possible 
with the LPC2292. With the exception of the ADC pins, I don't know why 
the pins cannot always be connected to the IO0PIN register. This would 
be very usefull with reading the state of capture or interrupt pins for 
example.

Richard Duits


philips_apps wrote:

> Hi,
>
> the answer is YES, all of the above. The pins are connected to the APB
> bus by default for compatibility reasons but can be connected to the
> Local Bus (memory bus) as well.  For the "how" you could check the
> Users Manual of the LPC2148, which is the first of the Philips devices
> to use this methode.
>
> Robert
>
> --- In lpc2000@yahoogroups.com, "radoslaw_mitura"
> <radoslaw_mitura@y...> wrote:
> > The block diagram in the pdf shows "GENERAL PURPOSE GPIO" mapped to
> > "P0[31:0]" as well as "HIGH SPEED GENERAL PURPOSE GPIO" mapped to the
> > same "P0[31:0]". Does it mean the pins can be connected and
> controlled
> > by block connected to ARM memory bus or APB bus?
>
>
>
>
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