Pinout for SED9421

[Allison]

>
>Subject: Re: Pinout for SED9421
>   From: woodelf <bfranchuk at jetnet.ab.ca>
>   Date: Fri, 25 Nov 2005 13:51:27 -0700
>     To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
>
>Allison wrote:
>
>>Either that a Dflop(74LS74), hex D-latch(74LS174) and 32x4 prom(74LS288).
>>
>>  
>>
>Just for the heck of it,  got a schematic and a prom listing?

Sure do.  Send a scanner and a system that won't croak under the load.
It's in the net, someone about three months ago found it.

>Did anybody ever use a serial chip and a data separater
>rather than a floppy disk controler?

Yes, many.  usually its a sync chip.

Allison