LK201 emulator for PS-2 keyboard

Warner Losh imp at bsdimp.com
Wed May 12 12:31:13 CDT 2021


On Wed, May 12, 2021 at 11:12 AM Antonio Carlini via cctalk <
cctalk at classiccmp.org> wrote:

> On 12/05/2021 17:53, Paul Koning via cctalk wrote:
> > I remember those.  I thought Jonathan was talking about the round ones,
> but I suppose the protocol is identical.  There was also a tablet, same
> interface I believe.  I used one of those to trace some topo maps.
> >
> > Does anyone know of protocol documentation for these devices?
> >
> >       paul
> >
> >
> The normal mouse specs are in VCB02 Video Subsystem Technical Manual,
> EK-104AA-TM-001 (appendix C).
>
> The LK201 is in there too.
>
>
> I think I have one of those mice with the non-round connector, but I
> also have a MIPS DECstation that I now suspect needs it :-)
>

Is that the same one the DEC Rainbow needs for DECwindows?

Warner


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