Lpc2000

I was told by someone at Philips that RTXC1 (input pin) should be 
tied to ground, and RTXC2 (output pin should be left unconnected).

This makes sense to me.  Leaving an input pin floating does not sound 
like a good idea, even if the function of that pin is disabled.

Philips Apps: How about spec'ing this in the next Data Sheet and User 
Manual release.


--- In lpc2000@yahoogroups.com, sudip nag <sudipnag1@y...> wrote:
> Hi Bill,
> LPC2138 RTC pins may be kept unwired (do not connect any thing) and 
let the registers in default state while you are not using. There is 
no special consideration for this and thus trivial to mention in 
datasheet. The RTC register definition is sufficient.
>  
> Sudip
> 
> tonalbuilder2002 <twentiethwave@h...> wrote:
> I'm designing a LPC2138 board without an external RTC xtal 
circuit.  
> Any ideas how to handle the RTCX1 & RTCX2 real time clock 
oscillator 
> pins when not used?  The manual doesn't seem to have a 
recommendation 
> for this.
> 
> Bill T.
> http://www.kupercontrols.com
> 
> 
> 
> 
> 
> 
> 
> 
> 
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