Docs for DRV-11?

It turns out this is the DRV11-WA (Module M7651) which is a dual wide, Q-bus, DMA capable, 16 bit I/O port. (Very cool as far as I am concerned). I actually found another one of these in my spares bin so I've actually got two. Megan's field guide page makes it out to be 18/22 bit compatible so that it can probably DMA into and out of pretty much any part of Q-bus memory space. The MicroVAX will let me map pages of its memory into the Q-bus space so I can presumably DMA things out of VAX memory and into some peripheral. This differs from the M7941 which is also a 16 bit interface but does not do DMA. I've got the 1980 LSI-11 peripherals handbook which talks about the DRV11-B which is quad wide (M7950) which appears to be the predecessor to this board, it can only do 18 bit DMA. I'll bet a zillion dollars that the pin out on the two connectors is identical :-) So if I can figure out when the 7651 was introduced I might be able to find a handbook that covers it. I've got a spare 1980 handbook I'd be willing to trade for a 1985 or thereabouts. And to whomever was wondering about MSCP. No, I don't expect to do MSCP! I built a "bit banger" SCSI interface for the Z80 once out of a PIO chip and a couple of flip flops. If you make simple assumptions like SCSI-1, Only one target on the bus besides you, asynch I/O only, etc. It isn't hard to do. --Chuck At 07:16 PM 5/11/01 +0100, you wrote: