Newsgroups: comp.sys.transputer
From: dan@ecs.soton.ac.uk (Denis Nicole)
Subject: Re: T8 30MHz link speed
Organization: Electronics and Computer Science, University of Southampton
Date: 8 Mar 94 11:57:34 GMT
Message-ID: <dan.763127854@orca>

In <CMB0p0.Eo2@wizzy.com> andyr@wizzy.com (Andy Rabagliati) writes:

>The T8 family has three link speeds - 5Mbit /sec, 10Mbit /sec, and
>20 Mbit /sec. These are referenced off the input clock.

>If you want to abuse link speed settings, try telling the processor it
>is 20Mhz, the link it is 20 Mbits /sec, and clock it at 7.5 Mhz. Of
>course, it will not talk to any other (sanely clocked) transputers - it
>will need another renegade transputer to talk to, or itself.
>Disclaimer - I have never tried this.
I have; we clocked a network of three T800s at 10MHz so that the link
speed was 40MHz and the processor ran at 45MHz.  It worked fine under
liquid nitrogen.  It's written up in an old OUG newsletter.

Your mileage may vary.

Denis Nicole
dan@ecs.soton.ac.uk

