The Last of The Line

[Johnny Billquist]

Pete Turnbull <pete at dunnington.plus.com> skrev:

 > On 17/05/2007 21:51, Johnny Billquist wrote:
 >> > "Rod Smallwood" <RodSmallwood at mail.ediconsulting.co.uk> skrev:
 >
 >>> >> Module    Type        Speed        RAM    ROM    LTC    SLU
 >>> >> ------    ----        -----        ---    ---    ---    ---
 >>> >> M8190        KDJ11-B
 >>> >> M8190-AD    KDJ11-BA    18
 >>> >> M8190-AB     KDJ11-BB    15        0    Y    Yes
 >>> >> 2
 >>> >> M8190-AC    KDJ11-BD
 >>> >> M8190-AZ    KDJ11-BF    18        0    Y    Yes
 >>> >> 2
 >> >
 >> > You need to check out if all of these really works in an 11/84. I 
don't
 >> > think they all do. Some had hardware bugs that meant they only 
work in
 >> > the 11/83 configuration.
 >
 > Are you sure about that?  Early ones had hardware bugs that prevent them
 > working with an FPJ11 but I never heard of one not working in an 11/84.
 >  In fact the buggy ones were often found in 11/84s.  On the other hand
 > there are some PMI memories that only work in one machine flavour, but
 > the opposite way round to what you wrote: the MSV11-JB and -JC only work
 > in 11/84s; their ASICs aren't compatible with QBus systems.

Not entirely sure. I got that from the field guide. If you look at the 
M8190 there, you'll see that the KDJ11-B is only used in the 11/84 
(unibus only). The KDJ11-BA, -BB and -BD is marked as Q-bus only, and 
only 11/83. The KDJ11-BF is the final version, and is marked as working 
in both 11/83 and 11/84 (both Q-bus and Unibus).

Of course there are other problems as well, such as the FPJ-11 socket on 
some versions, as well as speed.

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol