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fhw72
PostPosted: Sat Sep 30, 2023 9:35 am 
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Joined: Thu Jul 20, 2017 9:58 am
Posts: 91
Hi @ll,

maybe this one is interesting for some of you:

MOS internal Documentation about 6522 problems and possible corrections (that were never made).

Attachment:
MCS6522_Problems_and_corrections.pdf [643.44 KiB]
Downloaded 77 times


Please excuse the slightly too small scan. I don't have a Scanner for this paper format (yet).

/Frank
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gfoot
PostPosted: Sat Sep 30, 2023 10:28 am 
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Joined: Fri Jul 09, 2021 10:12 pm
Posts: 741
Very interesting! I came across problem 3 quite recently. I believe problem 8 was solved as it is possible to clear individual IFR bits now.
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