1GHz PDP-11 (Re: Prints for an 11/70)

From: Boatman on the River of Suck <vance_at_ikickass.org>
Date: Thu Dec 13 00:30:23 2001

On Thu, 13 Dec 2001, Dave McGuire wrote:

> On December 12, Jeffrey S. Sharp wrote:
> > What little I've read about UNIBUS told me that UNIBUS has no set clock
> > rate, and that the speed of communication between two devices would be the
> > the highest rate that both devices could handle. If you've got nothing
> > but Sridhar-made fast devices on the bus, what stops you from having a
> > UNIBUS operating at say, 33MHz to 100MHz on average?
>
> I don't recall the specifics of Unibus...but its bandwidth is commonly
> stated as being about 7MB/sec. If that's the case, then it's unlikely
> that it's asynchronous. But perhaps it is asynchronous, and 7MB/sec
> was just the maximum.

That's why I was thinking of addressing multiple busses. Not only that, I
want to maintain compatibility with existing devices.

Peace... Sridhar
Received on Thu Dec 13 2001 - 00:30:23 GMT