Intel PCH-LP, Programming Manual

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Intel Confidential
APPENDIX A - Descriptor Configuration
8 Gbe MAC SMBus Address Enable
(GBEMAC_SMBUS_ADDR_EN):
0 = Disable
1 = Enable
Notes:
1. This bit MUST be set to ’1’ when utilizing Intel
integrated wired LAN.
2. If not using Intel integrated wired LAN solution or if
disabling it, then this segment must be set to '0'.
This bit must be set to ’1’ if Intel integrated wired LAN
solution is used.
If not using, or if disabling Intel integrated wired LAN
solution, then this field must be set to ’0’.
7:2 Reserved, set to ’0’
1:0 Intel PHY Connectivity (PHYCON[1:0]):
This field determines if Intel wired PHY is connected to
SMLink0
00: No Intel wired PHY connected
10: Intel wired PHY on SMLink0
All other values Reserved
Notes:
1. This bit MUST be set to ’10’ when utilizing Intel
integrated wired LAN.
2. If not using, or if disabling Intel integrated wired LAN
solution, then this segment must be set to 00b.
This field must be set to "10" if Intel integrated wired
LAN solution is used.
If not using, or if disabling Intel integrated wired LAN
solution, then field must be set to "00".
Bits Description Usage