> > The module has a Zilog eZ80F91 part on it with a 50MHz crystal. I've
> > been scouring the datasheet to answer one silly question: what
> > instruction rate does 50MHz system clock get me? I know not all the
> > instructions are single cycle.
> >
>
>IIRC, the instruction clock is the same as the crystal input on the Z8
>Encore. There isn't a 'divider' like on the PIC. However, instructions
>generally take more than one instruction cycle.
>
>I didn't realize they were up to 50MHz. Last time I looked, they maxed at a
>20MHz clock.

They're not, the poster is talking about the eZ80Acclaim! module that uses
the eZ80F91 micro which is ZiLOGs latest incarnation of the Z80
family.  This is a very different beast to the Z8 family.

Regards
Jean-Michel.

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