Lpc2000

Hi Bob,
I wouldnt really say this is a hardware bug, but a documentation bug.
Muxing of the pin would account for the loss of the pin level status
which is up to the chip arch designer. Sounds like the docs people 
didnt pay attention to the hardware guys. When I worked for 
Microchip and others this stuff was common. Usually the design will
be cookie cuttered into similar micros designs and to keep from
having to redo the chip masks etc. But my personal opinion is that
if an alternate function is selected, being able to read a pin level
is a secondary vestige that is normally an option to depend on. But 
of course, I may be wrong :-)

Can you switch to GPIO, then get the level, then back as needed? 
Or will this cause a glitch.

-Lee

--- In lpc2000@yahoogroups.com, "bobbruce000" <bobbruce000@y...> 
wrote:
> As was discussed in an earlier thread, there is an undocumented
> bug in the LPC2106 that prevents the GPIO pins from being read
> if they are configured for an alternative use (even though
> the Philips documentation explicitly says that it will work).
> 
> But I need to know if the same problem exists in the LPC2114/2124.
> Since the 2114/2124 came to market after the 2106, maybe there is
> a chance that the bug was discovered and fixed.
> 
> Does anyone know?
> 
>      -bob