DEC ADV11-D Analog to Digital converter with DMA

Paul Anderson useddec at
Sat Oct 17 02:06:25 CDT 2020

I think they were made by Data Translation.

On Fri, Oct 16, 2020 at 8:00 PM Jerry Weiss via cctech <
cctech at> wrote:

> On 10/16/20 5:34 PM, Mark Matlock via cctech wrote:
> >     I recently acquired an ADV11-D Qbus A/D board and having been
> working on a RSX11M+ driver for it. It is similar enough to the ADV11-C
> that the driver I wrote for the -C works ok, but the -D is DMA capable.
> >
> >      It seems to have two extra CSR registers in addition to the CSR,
> and read buffer. Does anyone have documentation for this board? It is
> mentioned in the Oct. 88 Microsystems Option Guide and both RSX and VMS
> supported it. It was also mentioned in the Dec 92 Real Time Products
> Technical manual.
> >
> >    It has a 40 pin IDC connector that appears to have some amount of
> differences from the ADV11-C and no where have I seen any info on the DMA
> capability.
> >
> >     Does anyone have a ADV11-D user manual or XXDP source code for
> testing it?
> >
> > Thanks,
> > Mark
> I just picked a AAV11-D D/A Board for which documentation is also
> scarce. The general design may be similar.  I should be able to reverse
> engineer the analog/digital output section for pin-outs. Lacking
> manuals/source code, if someone has an existing driver or software in
> binary, I would be willing to disassemble that for its secrets.  Perhaps
> these boards mimic the methods used by ADAC or Data Translation used for
> their Qbus products.  Their documentation may also give some insight on
> how to setup these CSR's.
> Regards,
> Jerry

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