Lpc2000

--- In lpc2000@yahoogroups.com, "rtstofer" <rstofer@...> wrote:
>
> --- In lpc2000@yahoogroups.com, "Doug Collins" <dougc@> wrote:
> >
> > 
> > Richard wrote:
> > 
> > >I'm looking at Table 48 Pin Description For LPC2131/2132/2138
> > >(page 77) and the entry for P0.14 where there is an 'Important'
> > >note describing the use of P0.14.  This is in the User Manual
> > >dated November 22, 2004.  Am I looking at the wrong thing? 
> > 
> > Yep, that's the wrong thing, or at least the old thing.  The current
> user
> > manual is Rev 0.1, 11 - January 2006 
> > 
> > I do see the comment you're referring to in the System Control Block
> section
> > of the manual, section 3.2.  It's also discussed in Chapter 19,
> Flash Memory
> > System and Programming.  What I don't see is a single word about the
> special
> > usage of this pin in Chapter 6 or 7 which deal directly with
> configuring pin
> > functionality.  A note in section 6.2 "Pin Descriptions" would
> certainly be
> > nice.
> > 
> > Assuming that table 58 in the current manual corresponds to table
48 old
> > manual it looks like Philips removed this "Important Note".  
Maybe they
> > should put it back?
> > 
> > Doug
> > 
> > A Mind is Like A Parachute. Works Best When Open
> >
> 
> Ah!  Now I understand.  The really good news is that I can't even find
> the Jan 2006 edition.  I have wandered all over Google and a couple of
> Philips sites and not a trace.
> 
> I even started at the recommended site with no luck.  I did find a
> newer version (24 JUN 2005) where the bootloader function of P0.14 is
> now just a "Note:..."
> 
> Richard
>

How in the world I got off on the wrong chip completely escapes me! 
Duh!  I did find the LPC2103 User Manual dated Jan 2006.

A perfectly good warning in an older User Manual is certainly omitted
in the 2103.

I see the other requirement is to provide a pull-up resistor so the
pin doesn't float into an undefined state during reset.  I think I
knew that but now I'm certain.

Richard