SMD disk specifications

Guy Sotomayor Jr ggs at shiresoft.com
Sat Dec 14 10:50:23 CST 2019


Thanks Eric, I somehow missed that one.

TTFN - Guy

> On Dec 13, 2019, at 11:42 AM, Eric Smith <spacewar at gmail.com> wrote:
> 
> On Fri, Dec 13, 2019 at 10:55 AM Guy Sotomayor via cctalk <cctalk at classiccmp.org <mailto:cctalk at classiccmp.org>> wrote:
> I’ve been trying to find *detailed* specifications (mainly detailed signal timings) for the SMD disk interface but all I’ve found so far are the interface specifications for individual disks (CDC, Fujitsu, etc).  I’ve looked in the usual places (bitsavers mostly) and haven’t found the spec itself.  If anyone has any pointers, I’d appreciate it.
> 
> You've seen that the SMD spec (as of March 1981) is on Bitsavers?
> pdf/cdc/discs/interface_specs/64712400_SMDCableSpec_Mar81.pdf 
> 
> That doesn't cover later enhancements such as SMD-E.
> 



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