Re: Weird Bank Select PCB attached to C64 ROM

From: Jim Brain <*brain_at_jbrain.com*> Date: Sun, 19 Feb 2012 10:20:13 -0600 Message-ID: <4F41213D.9070300@jbrain.com> · brain_at_jbrain.com

On 2/19/2012 10:09 AM, Jim Brain wrote:

Via translation, I determined it's a bank select circuit, but I am still 
curious as to how it works.
> http://allegro.pl/commodore-64-c-2-os-y-i2077847284.html (last 2 
> pictures)
>
> I can see Vcc, Gnd, and /CE of the EPROM, which appears stacked on top 
> of the original ROM, but the rest eludes me.
>
> Jim
>

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

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