flash (or ide) storage for unibus 11?

Johnny Billquist bqt at update.uu.se
Thu Nov 26 05:03:33 CST 2015

On 2015-11-26 07:08, tony duell wrote:
>>> The RH11 do DMA, just like all other disk controllers I know of.
>> IIRC, the RX11/RX211 (Unibus) and RXV11/RXV21 (Qbus) don't do DMA.
> The RX11/RXV11 don't do DMA, but the RX211 and RXV21 do, I think

Right. And the RXV21 only have 18-bit addressing for DMA.


Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

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