Article ID: 000057523 Content Type: Product Information & Documentation Last Reviewed: 10/05/2022

Does Intel® Ethernet Controller I210 Support 802.3az Energy Efficient Ethernet (EEE) with Network Controller - Sideband Interface (NC-SI)?

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Summary

NC-SI have no EEE function

Description

Need to know if I210 support 802.3az (EEE) when it is used with NC-SI interface. 

From I210 datasheet, it says I210 supports 802.3az(EEE), but it doesn't say in which scenario. From the context it sounds I210 only support 802.3az(EEE) when it is connected to the host CPU with PCI-E interface.

Resolution

802.3az define EEE which need Ethernet Physical Coding Sublayer (PCS)/ Physical Medium Attachment Sublayer (PMA)/ Physical Medium Dependent Sublayer (PMD) to implement the related function. NC-SI is Reduced media-independent interface (RMII) which have no related with EEE circuit. So NC-SI have no EEE function.

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