CRTC 6545

From: Gerrit Heitsch <gerrit_at_laosinh.s.bawue.de>
Date: Sat, 28 Apr 2012 19:00:00 +0200
Message-ID: <4F9C2210.4050002@laosinh.s.bawue.de>
Hello,

I know it's kind of OT here but since there was a thread regarding the 
6545 as used in the CBM systems, I went to refresh my memory on it and 
found this:

http://archive.6502.org/appnotes/synertek_an3_6545_crtc.pdf

They describe some interesting hacks in there, including one where the 
LP input together with 2 TTLs is used to implement a 64 key keyboard.

  Gerrit



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Received on 2012-04-28 18:00:19

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