Digital I/O connector pinout on X3 XMC module carrier

lpagli · Joined: 22 Mar 2011 Posts: 5

I would like to obtain the pinout mapping for the MDR68 digital I/O connector that is on the back side of an eInstrument containing an X3-10M plus its module carrier. I've searched in the datasheets but was not able to find it.
I apologize if this is not the right section of the forum.

Lorenzo

jhenderson · Posted: Tue Mar 22, 2011 1:39 pm Post subject: MDR pinout

See table 39 in the X3-10M hardware manual for a full pin description of P16, which maps to the rear-terminal MDR68 as described in the forum post at http://www.iidsp.com/forum/viewtopic.php?t=611

lpagli · Joined: 22 Mar 2011 Posts: 5

Thank you for your prompt reply.
I obtained the Digital I/O MDR68 mapping by comparing the mapping of the Analog Input MDR68 to the breakout box.
One thing that I noticed is that in the Digital I/O MDR 68 connector seems that there isn't a pin explicitly connected to digital gnd. I have an X3-10M board so with 44 Dig I/Os, are the other unused pins connected to DGND? If not, I was thinking about forcing a digital I/O pin to gnd to obtain a reference imposing low-level on it in my logic design.

Lorenzo

jhatcher · Posted: Wed Mar 23, 2011 7:25 am Post subject: DGND now on posted attachment

I have added the DGND pins on the MDR68 breakout attachment.

lpagli · Joined: 22 Mar 2011 Posts: 5

Thank you very much for your reply.

Best regards

Lorenzo

jhenderson · Posted: Fri Mar 25, 2011 2:20 pm Post subject:

Issue closed