In search of qbus WCS...

From: Tom Uban <uban_at_ubanproductions.com>
Date: Thu Oct 31 16:12:00 2002

Hi Eric,

I'm not sure how badly you want a M7870 board, but this fellow
has been able to locate some fairly rare parts for me at times.

Charle Burgess
QEI Incorporated
119 Great Road
Bedford, MA 01730

--tom



At 01:45 PM 10/31/2002 -0800, you wrote:
> > Jerome Fine replies:
> >
> > I probably do have both the dual and quad 11/03 CPU
> > boards. Do they have the WCS? I seem to remember
> > that the 11/44 also has the WCS? But since you did not
> > mention which CPU modules have the WCS, it might
> > help others who do have a WCS CPU.
>
>No PDP-11 had WCS as a standard feature. WCS options were
>available for the 11/03 (LSI-11) and 11/60.
>
>The 11/03 version is the KUV11, M8018. It's a quad-height module.
>
>The KUV11 needs to be cabled to a specific MICROM socket on the M7264
>module; it will not work on the half-height LSI-11/2 module (M7270).
>The KUV11 can be loaded with the EIS/FIS microcode (equivalent to the
>KEV11 MICROM), with 512 words left over for user microcode. Or you can
>use all 1024 words for user microcode, subject to some restrictions.
>If you have the single-hybrid-chip version of the KEV11, you can use
>it with the KUV11, and strap the latter to only respond to the last
>512 words of the microcode address space.
>
>The 11/60 version is the KU116, M7870. I'm looking for one of these.
>
>There was a third-party WCS option for the PDP-11/45; there may have
>been third-party WCS options for other models.
>
> > I think one board has all 5 chips. I suspect that means it
> > has the EIS/FIP chip?
>
>It has the two-chip version of the option, so there is no socket left
>for the WCS. You'd have to remove the KEV11 chips to use the WCS.
>
>Eric
Received on Thu Oct 31 2002 - 16:12:00 GMT