Would a Quniverter would work? On Sun, Jul 22, 2018 at 4:01 PM, Charles Dickman via cctalk < [email protected]> wrote:
> On Sun, Jul 22, 2018 at 8:47 AM, Mark Matlock via cctech > <[email protected]> wrote: > > Now my question is, there are 3 Bus slots in the 11/84 above the > Unibus map board, would it be possible > > to put a dual width Q22 I/O board in the second memory slot (not the PMI > side of the slot) and have it > > able to DMA into the MSV11-JE? > > The answer I have heard here over and over is that an 11/84 with the > UNIBUS adapter and PMI memory does not have a Qbus. As I understand > it, the KDJ11-B (M8190) bus protocols change when a KTJ11 (UNIBUS > adapter) is present and so what would be expected to be Qbus isn't. > > Others can probably explain the details and I think there was a DEC > Micronote that explained the protocol modifications involved. > > > Mark > > -chuck >
