Re: Stuff from Dennis Jarvis

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Wed, 16 Nov 2016 17:43:46 +0100 Message-ID: <87dae5f1-12b9-806d-cdea-49e40a934c36@laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 11/16/2016 05:09 PM, Michał Pleban wrote:
> Hello!
>
> Gerrit Heitsch wrote:
>
>> Doesn't look too different to me. The two HM514260 are 256K x 16 DRAMs
>> while the other expansion has eight 256Kx4 DRAMs. Results in the same
>> amount of memory, 1 MB.
>
> But one has one PAL chip and the other has two, the equations for the
> second one are probably unknown.

Well, yes, the x16 DRAMs probably needed some extra logic.

  Gerrit

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