Subject: Re: PMAZ-A option card on 3MIN and MAXINE
To: Toru Nishimura <nisimura@is.aist-nara.ac.jp>
From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
List: port-pmax
Date: 06/03/1998 20:06:08
>Ok, I see.  The question now is how reliably PMAZ-A can run at 25MHz
>NCR53C94 chip clock rate (in driver's sense) attached with 3MIN and
>MAXINE.  I will wait for field reports. 

I think Michael is saying that the clock _source_ for the PMAZ-A is
the TC clock. On a 12.5MHz TC, the input clock to the 53c94 is half
what it is on the 25MHz TC. Thus on 12.5MHz TC systems, the 53c94's
idea of its clockrate needs to be doubled accordingly.