Hello Ruud, RB> I mean 8 bit transfer to port A of the VIA. AFAIK the 6526 can only read a RB> port, the VIA can latch the data on the port. I intend to use it for the 16 RB> bit transfer for an ISA-card: D0..7 are read by the CPU, D8..15 by a port. No. 6526 has also input data latching. VIA has also a register w/o handshake control. >> I can dig it up. I even have the working board somewhere with 65c22. I >> can send you the scanned pages (in german), that I used for design. RB> This triggered the thought that the 64'er published an article about it. But RB> which magasine??? I would be happy anyway with the article, thanks. Okey. I found it. It's not a 64'er article. It was scanned from book. BTW, I forgot who was sent to me. Anyway the zipped pages are just online. You can DL it from: http://c64.uz.ua/misc/65xxinterfacing.zip I also checked my schematics and so used only a 1/2 74LS74 to drive phi2 of 6522 and no more gates for delay. Best regards, Frank - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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