RTL8111B datasheet(71/75 Pages) REALTEK

Part #	RTL8111B

Description	INTEGRATED GIGABIT ETHERNET CONTROLLER FOR PCI EXPRESS APPLICATIONS

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Manufacturer	REALTEK [Realtek Semiconductor Corp.]

Direct Link	https://www.realtek.com/en/

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71 / 75 page

RTL8111B/RTL8168B

Registers Datasheet

Integrated Gigabit Ethernet Controller for PCI Express

65

Track ID: JATR-1076-21 Rev. 1.0

6.3.4. Tx/Rx LED

In 10/100/1000Mbps mode, blinking of the Tx/Rx LED indicates that both transmit and receive activity is

occurring.

Power On

Tx/Rx Packet?

LED = High

LED = High for 40 ms

LED = Low for 40 ms

No

Yes

Figure 4. Tx/Rx LED

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