FPGAs, unobtanium and FPJ11s

Pete Turnbull pete at dunnington.plus.com
Sat Nov 25 04:46:45 CST 2006

Gordon JC Pearce wrote:
> Pete Turnbull wrote:
>> On 24/11/2006 13:13, Gordon JC Pearce wrote:
>>> The thought occurred to me that it might be nice to have the 
>>> floating-point option in my PDP-11/73.

>> Is your 11/73 a KDJ11-A or KDJ11-B?  If the former, it may not be 
>> compatible with the floating point hardware anyway (M8192 without a YA 
>> or YC suffix).  Some early 15MHz KDJ11-B boards aren't either.

> It's an M8192-YB.

That one should be OK.  Sorry, there was a typo in my post; I should 
have written -YB not -YA.  -YC is a -YB with an accelerator factory-fitted.

 > There is a 40-pin
 > socket on the board though, that I am given to understand is for the
 > accelerator.

All the M8192 boards have that; it doesn't necessarily mean it works :-)

Pete						Peter Turnbull
						Network Manager
						University of York

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