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Text from 2nd SID simple solution

Description:2nd SID Chipselect-circuit
Text:This simple circuit designed by Hermit Soft, (who is also an electrical technician :) can separate two addresses for the original and the added 2nd SID.
It switches one of the ChipSelect-inputs of the SIDs.
It works, I tried it in my 3SID machine, and my 3SID tracker worked with the new addresses too...

If You use A7/A6/A5 of address-bus as input instead of A8 ($100), You can manage $d420/$d440/$d480 SIDs too..

Good luck, and design a little PCB for it..(I haven't done yet)...


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CSDb (Commodore 64 Scene Database) is a website which goal is to gather as much information and material about the scene around the commodore 64 computer - the worlds most popular home computer throughout time. Here you can find almost anything which was ever made for the commodore 64, and more is being added every day. As this website is scene related, you can mostly find demos, music and graphics made by the people who made the scene (the sceners), but you can also find a lot of the old classic games here. Try out the search box in the top right corner, or check out the CSDb main page for the latest additions.
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