On Mon, 25 Feb 2002, Ethan Dicks wrote: > Since the 6522 was made by multiple vendors (Rockwell, MOS, Synertek, UMC...), > I would think that it's a "safer" chip to use. The 6526, while millions > were made, was strictly a Commodore/MOS product, right? Right. But actually both chips are overkill, they have many more capabilities than just a single I/O port. A chip like the 6529 would better suit the needs, but it has the big disadvantage of not having a data direction register. I think both the 6526 and 6522 are good enough for testing the concept of the adaptor during prototyping. Nicolas Message was sent through the cbm-hackers mailing list
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