RE: VIC-20 and 6502 question

From: Baltissen, GJPAA (Ruud) (
Date: 2004-07-03 15:32:21

Hallo William,

> That's also nonsense, but we have had this discussion before.

I disagree (about the nonsense, not about the discussion). Have a look at
the SCH's of the 30xx. There you'll find a connection between UC5/PB5 and
UC7/CB1. Both pins can be programmed as an output. 
6522-VIA.txt on FUNET says that port B pins are totempole outputs. It
doesn't mention what type CB1 is but I'm quite sure CB1 is a totempole
output as well. Now pull one pin (H) and the other (L) and there you is the
beginning of the end of your 652x.... 

(But I hope I'm wrong) 

   / __|__
  / /  |_/     Groetjes, Ruud
  \ \__|_\
   \___|       URL:



De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij overgebrachte virussen.

The information contained in this e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail; please delete in this case the e-mail and do not disclose its contents to any person. We don't accept liability for any errors, omissions, delays of receipt or viruses in the contents of this message which arise as a result of e-mail transmission.
       Message was sent through the cbm-hackers mailing list

Archive generated by hypermail pre-2.1.8.