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Lpc2000

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Re: External clock on LPC2131

2005-10-21 by drb5599

Hi Marcio,
Yes, that mode of operation is supported.  I have been running a 
LPC2131 with an external 12.288MHz clock that is buffered and feeds 
everything on my board.  Works fine.

See page 31/32 of the manual.  There is some info there although I 
agree it is not very clear.  Just leave the unused pin 61 (XTAL2) 
open.  Also, make sure you use the recommended (100pF) coupling cap 
for XTAL1.
See figure 7a for slave mode.

Good Luck,
Dave B.





--- In lpc2000@yahoogroups.com, "atmelbr" <atmelbr@y...> wrote:
>
> Hi all,
>    If I put an external clock on XTAL1 input (instead of quartz
> crystal) everything will run ok ? I can“t find the answer on 
datasheet.
> Thanks,
>           Marcio
>

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