# \#alternate

**URL:** https://forums.digi.com/tag/alternate/1081.md

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## [R6000 PC2 always is alternate function](https://forums.digi.com/t/r6000-pc2-always-is-alternate-function/13746)

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**Author:** [@AlanS](https://forums.digi.com/u/AlanS)\
**Replies:** 2\
**Last updated:** [October 21, 2014, 11:12am UTC](https://forums.digi.com/t/r6000-pc2-always-is-alternate-function/13746 "2014-10-21T11:12:10Z")

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On the R6000, I use PC3 as the serial TXC port. PC2 is set as normal function. However, when the serial port C is opened, PC2 suddenly becomes TXC. What’s going on? Anyone seen this happen? The code: WrPortI (PCDDR,…

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## [How to setup PE3 on RCM4300 to be SCLKD?](https://forums.digi.com/t/how-to-setup-pe3-on-rcm4300-to-be-sclkd/12473)

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**Author:** [@dduncanearl](https://forums.digi.com/u/dduncanearl)\
**Replies:** 1\
**Last updated:** [February 14, 2014, 1:03pm UTC](https://forums.digi.com/t/how-to-setup-pe3-on-rcm4300-to-be-sclkd/12473 "2014-02-14T13:03:39Z")

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I’m trying to use the alternate function on PE3 of an RCM4300 that allows it to output SCLKD. By default, PE3 does is setup as an input. Is there a simple macro that allows this alternate function to be configured? If no…