Re: CBM-II solderless memory expansion

From: Michał Pleban <*lists_at_michau.name*> Date: Fri, 13 Apr 2018 09:59:57 +0200 Message-ID: <5AD0637D.9010308@michau.name> · lists_at_michau.name

Hello!

Baltissen, GJPAA (Ruud) wrote:

> I think we miss a bit of info which is obvious for you. My question: how are you going to select the extra banks?

With a custom PLA. Currently the PLA is generating RAS/CAS signals for
the four 64kB banks that are on the mainboard. Since the PLA equations
are now known, a GAL can be programmed to generate RAS/CAS signals for
the remaining banks.

Regards,
Michau.