PDP-11/05 microcode dump?

[Mattis Lind]

>
>     > The failing chip was yet another NS chip in plastic
>
> Can you see the type? I'd like to add to the page lists of all the
> alternate
> chip types DEC used in place of the Intersil chips specified in the
> drawings.
>
>
>
I'll check all PROM chips on both board sets tomorrow.


>     >> the 'F' etch rev has one less PROM chip than the 'E' etch rev, but I
>     >> suspect .. that it's not a micro-program chip, though
>
> My guess was correct; the missing chip is the one I called "Internal
> interrupt acknowledge"; it was replaced with a 74154 4->16 demux.


What about compatibility between different revisions? I.e. Is it possible
to mix DataParh board and Control board from different revisions with
different microcode?

/Mattis

>
>         Noel
>