Re: Stuff from Dennis Jarvis

From: Jim Brain <brain_at_jbrain.com>
Date: Wed, 16 Nov 2016 12:08:43 -0600
Message-ID: <b52bedeb-3309-a5bf-2681-b41ff03c3b71@jbrain.com>
On 11/16/2016 9:58 AM, Gerrit Heitsch wrote:
> On 11/16/2016 11:09 AM, Michał Pleban wrote:
>> Hello!
>>
>> Jim Brain wrote:
>>
>>> Note that there are 2 versions (at least) of the memory expansion, 
>>> and I
>>> think they are incompatible.
>>
>> Yes, this seems to be a quite different board than the one referenced 
>> here:
>> https://www.c64-wiki.com/index.php/C65
>
> 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.
>
> The board with the x16 RAMs also looks like there is space for an RTC 
> and battery.
>
>  Gerrit
>
>
>
>
>       Message was sent through the cbm-hackers mailing list

I didn't state the differences were major (though moving from x8 to x16 
is a pretty non trivial change), but I can confirm they are incompatible 
in some versions of the C65.

Jim


-- 
Jim Brain
brain@jbrain.com
www.jbrain.com


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Received on 2016-11-16 19:00:02

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