The PDP11/04 has landed..

[Mattis Lind]

2016-02-09 10:48 GMT+01:00 Holm Tiffe <holm at freibergnet.de>:

> Christian Corti wrote:
>
> > On Mon, 8 Feb 2016, Mattis Lind wrote:
> > >layers of  of a multilayer PCB. As mentioned earlier in this thread I
> did
> > >such a conversion on a MSV11-D board more than 25 years ago and then I
> had
> > >to lift up this pin and connect it via an extra wire.
> >
> > What about the DRAM refresh? 4116 have a 7 bit refresh address, whereas
> > the 4164 need 8 bit addresses.
> >
> > Christian
>
> Not all, some of them still use 7Bit:
>
> http://www.minuszerodegrees.net/memory/4164.htm


Yes. The chips used in this case were Fujitsu MB8264-15. They seemed to
work fine as they used 7 bit refresh, but it now is so long ago so I have
forgotten the details.

>
>
> Regards,
>
> Holm
>
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