Date   : Sat, 06 Jun 2009 00:07:29 +0200
From   : rick@... (Rick Murray)
Subject: Teletext

Does anybody have a circuit diagram, source, or other information on the 
Acorn teletext receiver?

I am wondering if it is viable to interface it to, say, a parallel port 
(perhaps support within !Teletext/WinTTX?); but I've had little luck in 
working out how the thing actually works! It appears to be a first 
generation teletext receiver with a TIC (5020), VIP (5030) but... there 
doesn't appear to be a TAC (5040)? Am I losing my mind? Does the Beeb do 
this itself under interrupt?


Best wishes,

Rick.