🚀 go-pugleaf

In article <1993Jan26.091719.17577@irisa.fr> mcconnel@irisa.fr (Roderick McConnell) writes:
>
>  How are faster internal clocks for CPU's typically generated?  I am
>wondering about processors such as the transputer, where the internal
>clock is a significant multiple of the external clock.  The external
>clock speed can not be varied (for the transputer at least), so my
>first guess is that there is a PLL inside - but wouldn't that require
>analog circuitry?
>-- 
>					- Roderick

You're quite right about the transputer using PLL's to increase clock speed,
these are implemented in CMOS and internally increase frequency to support
up to 30MHz clock cycle and 5x oversampling of the 20Mbit/sec links -
the clock input supplied to the transputer must be 5MHz.

Steve

Steve Doyle, Software Marketing, INMOS Ltd   | Tel +44 454 616616
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