On Sun, 9 Jun 1996 11:39:41 -0600 
 benh@inlink.com (Ben Hockenhull) wrote:

 > I have heard that the 030@50mhz chips are internally clockdoubled.  I am
 > wondering if this is indeed true.  If so, I would think that I'd see an
 > increase in processing speed, but not in external I/O.

On the hp375, which was basically an hp380 with an L-shaped daughterboard 
holding a 68030@50 and a 68882 (plugged into the 040 socket), I believe 
there was a 100MHz crystal installed.  Herb Peyerl <hpeyerl@beer.org> 
could say for sure ... he upgraded his 345 (a smaller-case variant of the 
375) to a 380 with a CPU/L-board swap and ROM upgrade.

So, I'm not sure where the "internally clock-doubled" notion comes from :-)

----save the ancient forests - http://www.bayarea.net/~thorpej/forest/----
Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939