82598EB Datasheet, PDF (556/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Reset Signals
7.6.6 Reset Signals
For a power-on indication, the 82598 can either use an Internal Power On Reset indication, which
monitors the 1.2 V dc power supply, or an external reset through the LAN_PWR_GOOD pad. The
POR_BYPASS pad defines the reset source.
Note: When high, the 82598 uses the LAN_PWR_GOOD pad as a power-on indication. When low,
the 82598 uses the Internal Power On Reset circuit.
The timing between the power-up sequence and the different reset signals when using the Internal
Power On Reset indication is described in Section 3.2.1.
The POR_BYPASS mode is described in Section 7.6.6.1.
The device power on logic is described in Figure 7-8.
Figure 7-8. Device Power-On Logic
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