Data Sheet

Initialization—Ethernet Controller I210
133
4.0 Initialization
4.1 Power Up
4.1.1 Power-Up Sequence
Figure 4-1 shows the power-up sequence from power ramp up and to when the I210 is ready to accept
host commands.
Note: The Keep_PHY_Link_Up bit (Veto bit) is set by firmware when the MC is running IDER or SoL.
Its purpose is to prevent interruption of these processes when power is being turned on.
Figure 4-1. Power-Up - General Flow
Vccpoweron
LAN_PWR_GOODreset
LoadFlash
InitializeFirmware
ConfigureMACandPHY
InitializeManageabilitylink
PE_RST_nreset
InitializePCIe
RunManageabilityFirmware
Drmode
Platform
powered
?
No
Yes
D0mode
Vetobit
on?
ResetMAC
LoadFlash
no
yes
ResetPHY
Hardwareoperation
Firmwareoperation