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p2040 rgmii disable

Question asked by Dick Ginther on May 31, 2013
Latest reply on Jun 3, 2013 by lunminliang

Hi,

 

I have the RGMII interfaces disabled in the RCW and that allows me to have most of the associated EC1 and EC2 pins as no connects.  I do have a few questions regarding a few aspects:

 

1) Do I still need a 1K pulldown on EC1_TX_EN?

 

2) are the EMI1_MDC/MDIO pins still available for use to program chips connected the SGMII interfaces?

 

3. The reserved pins E23 and F24 are for the P2041 EMI2_MDC/MDIO interface but are not used in the P2040.  Do I really have to connect them to 1.2V pullups or can I leave E23 floating and just pulldown F24. 

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