BA23 setup and DZQ11 configuration

[Ethan Dicks]

On 3/21/07, Mr Ian Primus <ian_primus at yahoo.com> wrote:
> Ah, OK. I wasn't aware that you couldn't use an
> onboard ROM on a KDJ11-A. What's that empty socket in
> the middle for then?

The 40-pin socket?  AFAIK, it's not for a boot ROM.  Given that there
are 40-pin sockets on other Qbus CPUs for things like EIS, FIS, etc.,
it must be one of those.  I don't have a KDF11A, so I've never worried
about extending the instruction set.  Most of my Qbus PDP-11 work has
been with the KDF11 and older (11/03, 11/23...)

-ethan