Very impressive detail. You might give a precise source citation on that page.
paul
> On Apr 5, 2022, at 8:07 AM, Noel Chiappa via cctalk <cctalk@classiccmp.org>
> wrote:
>
> So, I looked at the early editions of the "pdp11 peripherals hanbook", which
> have good, detailed discussions of UNIBUS operations (at the back; chapter 5,
> "UNIBUS Theory and Operation", in the 1976 edition), but in contrast to the
> level of detail given for master/slave operations, and bus requests and
> interrupts, the level of detail on power up/down is very low, especially
> compared to that in the later "pdp11 bus hanbook" (which, as mentioned, does
> not seem to be online yet, alas). So, I have transcribed that section, and
> posted it:
>
> https://gunkies.org/wiki/UNIBUS_Initialization
>
> I have yet to scan and post the associated timing diagrams (which are useful,
> but not critical); the desktop that runs my scanner is down at the moment,
> alas. (If anyone who has a copy would like to volunteer to scan them, that
> would be great.)
>
> Noel
