Log inRegister an accountBrowse CSDbHelp & documentationFacts & StatisticsThe forumsAvailable RSS-feeds on CSDbSupport CSDb Commodore 64 Scene Database
You are not logged in 
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)...


<-- Back
Search CSDb
Advanced
Sponsored links
Users Online
Merlin/The Seven-A-T..
Guests online: 29
Top Demos
1 Uncensored  (9.7)
2 Comaland 100%  (9.7)
3 Edge of Disgrace  (9.7)
4 Coma Light 13  (9.6)
5 The Shores of Reflec..  (9.6)
6 Wonderland XII  (9.6)
7 Lunatico  (9.6)
8 We Come in Peace  (9.6)
9 Incoherent Nightmare  (9.5)
10 Wonderland XIII  (9.5)
Top onefile Demos
1 FMX Music Demo  (9.6)
2 Daah, Those Acid Pil..  (9.6)
3 Pandemoniac Part 2 o..  (9.5)
4 Arok 20 Invitation  (9.5)
5 Party Horse  (9.5)
6 Treu Love [reu]  (9.5)
7 Dawnfall V1.1  (9.4)
8 Merry Xmas 2017  (9.4)
9 In Memoriam BHF  (9.4)
10 Dawnfall  (9.4)
Top Groups
1 Oxyron  (9.4)
2 Booze Design  (9.4)
3 Censor Design  (9.4)
4 Finnish Gold  (9.4)
5 Crest  (9.3)
Top Logo Graphicians
1 Pal  (9.5)
2 Mermaid  (9.3)
3 Yazoo  (9.1)
4 Elko  (9.1)
5 Jailbird  (8.9)



About this site:
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.
Home - Disclaimer
Copyright © No Name 2001-2018
Page generated in: 0.053 sec.