Re: 6540 Select Signals (Was: Re: 6550 pinout?)

donni wrote:
> Hello Jim,
> If you have a look at the schematic at zimmers.net, you can see that 
> all the 6540 rom have the same chip select configuration:
I know, and that's how I read it as well. 
> Schematic of 6540 roms replacement: 
> http://img13.imageshack.us/img13/3223/6540romreplacementwith2.gif
Might you have a chance to look at my schematic:

http://www.jbrain.com/vicug/gallery/ROM-el/6504_ROM_el_schematic

And see if my logic is correct?

Jim


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