Question On PCA Clock Formula
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   Question On PCA Clock Formula
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davidm   Posted 12-08-2008 at 11:15   



Registered on :
11-29-2005

From Australia

Messages : 3

 OFF-Line

Seems to me the uPSD3400 data sheet gives the wrong formula for
the PCA clock when using Fosc as the source.

The formula is shown as:-

Fpca = Fosc / ( 2^PCAxPS[3:0] )

whereas it seems to be:-

Fpca = Fosc / ( 256 * 2^PCAxPS[3:0] )

That is, a factor of 256 lower. Could ST support confirm this?

I've not seen errata notes discussing this.



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