# Put Port C (pin 0-3) on IO-Pins

**URL:** <https://forums.digi.com/t/put-port-c-pin-0-3-on-io-pins/3826>\
**Category:** NET+OS\
**Tags:** external-irq\
**Created:** [April 25, 2007, 9:21am UTC](https://forums.digi.com/t/put-port-c-pin-0-3-on-io-pins/3826 "2007-04-25T09:21:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mentzer](https://avatars.discourse-cdn.com/v4/letter/m/94ad74/32.png) [@mentzer](https://forums.digi.com/u/mentzer)\
**Post date:** [April 25, 2007, 9:21am UTC](https://forums.digi.com/t/put-port-c-pin-0-3-on-io-pins/3826/1 "2007-04-25T09:21:13Z")

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I have a problem with an external interrupt. I would like to release over an input pin an interrupt. The IO pin of the ConnectME are at PORT A and the interrupts are served by PORT C. Is it possible to put the PORT C on the IO pins ?

Marcus

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**Author:** ![pevandenburie](https://avatars.discourse-cdn.com/v4/letter/p/7feea3/32.png) [@pevandenburie](https://forums.digi.com/u/pevandenburie)\
**Post date:** [April 26, 2007, 9:28am UTC](https://forums.digi.com/t/put-port-c-pin-0-3-on-io-pins/3826/2 "2007-04-26T09:28:17Z")

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As far as I know, no interrupt pin are available on the DIGI Connect ME, in contrary to the COnnect EM. I hope you won’t tell me the contrary, because that’s why we buy COnnect EM !

Nevermind, enclosed is a test of “polling” in replacement of interrupt I made for COnnect ME.

Paul

Message was edited by: pevandenburie

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**Author:** ![charliek](https://avatars.discourse-cdn.com/v4/letter/c/94ad74/32.png) [@charliek](https://forums.digi.com/u/charliek)\
**Post date:** [May 10, 2007, 4:32pm UTC](https://forums.digi.com/t/put-port-c-pin-0-3-on-io-pins/3826/3 "2007-05-10T16:32:42Z")

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You have interrupt pins available on the Connect EM, but not on the Connect ME. See the EM’s hardware ref and the NS7520 for PORTC0-3 for details on what’s available to you as interrupts.