> This is awesome. I thought shift registers change their output AS YOU
> PULSE IN THE DATA. So, let me get this straight: they also have an
> "enable" pin so the output can be set all at once instead of
> pulse-by-pulse as you're shifting in the data?

A shift-register *by itself* changes it outputs when you clock in the 
data. But an actual chip might combine such a shift register with a 
holding register. As always, RTM for the details.

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Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu

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