Re: 6526A synchronous serial behavior?

From: Nicolas Welte <>
Date: Sat, 24 Sep 2011 17:16:24 +0200
Message-ID: <>
Gerrit Heitsch wrote:
> This also matches the appearance of the 8521 in late 1986. Could it be 
> that the change in timer behaviour is due to a mask change done while 
> transfering the 6526 from NMOS to HMOS-II?

Until I read your test results, I thought the 8521 (as well as the 8520!) 
shows the old 6526 behaviour.

Unfortunately I can't find my list anymore where I wrote down which chips 
are installed in which of my computers, so I can't run any tests now.


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Received on 2011-09-24 16:00:13

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