LAN8740A Datasheet, PDF (88/136 Pages) Microchip Technology – Small Footprint MII/RMII 10/100 Energy Efficient Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology

LAN8740A/LAN8740Ai
4.3.5 EEE CAPABILITY REGISTER
Index (In Decimal): 3.20
Size:
16 bits
Bits
Description
15:7 RESERVED
6 10GBASE-KR EEE
0 = EEE is not supported for 10GBASE-KR.
1 = EEE is supported for 10GBASE-KR.
Note: The device does not support this mode.
5 10GBASE-KX4 EEE
0 = EEE is not supported for 10GBASE-KX4.
1 = EEE is supported for 10GBASE-KX4.
Note: The device does not support this mode.
4 10GBASE-KX EEE
0 = EEE is not supported for 10GBASE-KX.
1 = EEE is supported for 10GBASE-KX.
Note: The device does not support this mode.
3 10GBASE-T EEE
0 = EEE is not supported for 10GBASE-T.
1 = EEE is supported for 10GBASE-T.
Note: The device does not support this mode.
2 1000BASE-T EEE
0 = EEE is not supported for 1000BASE-T.
1 = EEE is supported for 1000BASE-T.
Note: The device does not support this mode.
1 100BASE-TX EEE
0 = EEE is not supported for 100BASE-TX.
1 = EEE is supported for 100BASE-TX.
0 RESERVED
Type
RO
RO
Default
-
0b
RO
0b
RO
0b
RO
0b
RO
0b
RO
(see Note 1)
RO
-
Note 1: The default value of this field is determined by the value of the PHY Energy Efficient Ethernet Enable (PHY-
EEEEN) of the EDPD NLP/Crossover Time/EEE Configuration Register. If PHY Energy Efficient Ethernet
Enable (PHYEEEEN) is 0b, this field is 0b and 100BASE-TX EEE capability is not supported. If PHY Energy
Efficient Ethernet Enable (PHYEEEEN) is 1b, then this field is 1b and 100BASE-TX EEE capability is sup-
ported.
DS00001987A-page 88
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