Re: Question on Schematic

From: Jim Brain <*brain_at_jbrain.com*> Date: Mon, 23 Feb 2015 00:51:21 -0600 Message-ID: <54EACDE9.5020204@jbrain.com> · brain_at_jbrain.com

On 2/23/2015 12:44 AM, Baltissen, GJPAA (Ruud) wrote:
> Hallo Jim,
>
>
>> Does anyone know why someone would go to all that work....
> IMHO the whole circuit is there so the EasyFlash is able to replace the Kernal. Otherwise it is indeed overkill.
THis is an EasyFlash 1 schematic.  EasyFLash 1 does not replace the 
KERNAL, it's just a large ROM cart.

The answer, it appears, is to create a  delayed write signal that also 
ends before the normal CLOCK cycle is over, to help with C128 compatibility.

Jim

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