Pinout for SED9421
ajp166 at bellatlantic.net
Fri Nov 25 15:39:22 CST 2005
>Subject: Re: Pinout for SED9421
> From: "Chuck Guzis" <cclist at sydex.com>
> Date: Fri, 25 Nov 2005 13:25:49 -0800
> To: cctalk at classiccmp.org
>On 11/25/2005 at 1:51 PM woodelf wrote:
>>Just for the heck of it, got a schematic and a prom listing?
>>Did anybody ever use a serial chip and a data separater
>>rather than a floppy disk controler?
>I've done it on lashups to read very oddball floppies. A 2651 in sync mode
>will go to something like 600KHz or 1MHz data rate.
The commonly used 2601 USRT was common, also the Z80 SIO in sync mode
or the NEC d7201(8274) as they were faster.
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