Lpc2000

At 05:00 PM 4/22/05 +0100, Robert Wood wrote:
>  >> I think you are expecting too much of the UART.  As I recall the
>pins are  assigned there function by convention only.  You can make them
>mean
>anything you want them to.  They are controlled strictly by software not
>by the HW. <<
>
>Ah, OK.
>
>Thanks for the advice. :-)
>
>Seems pretty odd to name them that if they don't really carry out that
>function. Hey ho...

It's more common than you might think.  The most infamous example that I 
know of is the 8255.  The data sheets stated that the chip provided 
handshaking.  It was only by careful reading of the datasheet, usually when 
trying to get it to do the handshaking, that it became obvious that it 
didn't provide handshaking at all but only bits whose direction could be 
set.  Some of the second source manufacturers eventually changed the 
documentation but I don't think Intel ever did.

Robert


" 'Freedom' has no meaning of itself.  There are always restrictions,   be 
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