paulkoning at comcast.net
Thu Jun 2 13:40:11 CDT 2016
> On Jun 2, 2016, at 2:19 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
>> For whatever reason they managed to disable the unibus I/O
> I'm not sure you can (in hardware terms, that is - and clearly if there's no
> way to do it in the hardware, the software cannot do so)... although it could
> be broken.
I could imagine any number of signals that, if stuck, would make the bus inoperative. Reset asserted, for example. Or AC LO or DC LO asserted, possibly. Or NPG asserted.
More information about the cctech