Thanks for the reply.  My question stems from LFXT1's built-in capacitors,
and the statement

XT2 sources XT2CLK and its characteristics are identical to LFXT1 in HF
mode.

I was wondering if that meant to imply that it also had built in caps, and
if not, what capacitative load it expects to see -- the same  as LFXT1? 

Thanks,
Reza



thereza wrote:

> Also, with the built in frequency multiplier can I get a stable 8Mhz (or
> 16)
> with just a watch crystal -- enough for some high speed serial
> communication
> via the uart/spi?  

The User's Guide goes into minute detail about the available clock modules
and
the clock signals derived from them (SMCLK is the one you're wanting for
SPI):

http://focus.ti.com/lit/ug/slau049f/slau049f.pdf

Chapter 4 has all the details while fig 4-1 gives a schematic.  I fail,
however,
to see a frequency _multiplier_ (other than a rational number <= 1, that is)
in
that schematic ...


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