|  From: Solder (all posts) 
Date: 2001-05-06 
Subject: Re: Question about SIDCARD schematics/ports 
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Am 2001.05.06 13:26:37 +0200 schrieb(en) "Hársfalvi, Levente": 
 
Hi Everybody. 
 
I will publish the circuit for the SID-card in the next days on my homepage www.solder-synergy.de. The GAL is very simple. You can also use a hardwired logic with LS30/LS138 or other to decode the adresses ($fd40-$fd5f is basis, $fe80-$fe9f is mirror of this, $fd50 is gameport (bit's for direction like C64) and $fd51-$fd5f is mirror of this.) 
 
Christian 
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