On 09/06/2016 08:58 PM, Noel Chiappa wrote:
> From: Jules Richardson
> M8190-AE ; 11/83 CPU
> M8190-AB ; 11/83 CPU (or /73??) w/FPU
As far as I know, all the M8190's are _basically_ the same: they are the
KDJ11-B CPU, which support the PMI memory bus, can operate with a KTJ11-B to
provide a UNIBUS, etc. They are the CPU in an 11/83 (with QBUS only
backplane) and the 11/84 (with QBUS/UNIBUS backplane).
I got the /73 reference from a post of Pete's last year:
http://www.classiccmp.org/pipermail/cctech/2015-February/002612.html
... but I' m guessing he just meant that the slower ones work at the same
speed as a true /73?
Unfortunately there aren't any markings on the crystal on the -AB board
(well, there probably are, but on the underside and it would have to be
desoldered) so I don't know if it's a 15MHz or 18MHz part.
J.
