82NM10 Datasheet, PDF (72/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

Pin States
1.
LAN Connect and EEPROM signals will either be “Driven” or “Low” in S3–S5 states
depending upon whether or not the LAN power planes are active.
2.
In S3hot, signal states are platform implementation specific, as some external components
and interfaces may be powered when the NM10 is in the S3hot state.
3.
These signals can be configured as outputs in GPIO mode.
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Datasheet