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RTL8153

INTEGRATED 10/100/1000M ETHERNET CONTROLLER FOR USB APPLICATIONS

Realtek Semiconductor 

RTL8153

Datasheet

6.10. Wake Packet Detection (WPD)

The RTL8153 supports Microsoft Wake Packet Detection (WPD) to provide Wake-Up Frame

information to the OS, e.g., PatternID, OriginalPacketSize, SavedPacketSize, SavedPacketOffset, etc.

WPD helps prevent unwanted/unauthorized wake-up of a sleeping computer.

Refer to the Microsoft Wake Packet Detection (WPD) Interface Specification for details

(http://msdn.microsoft.com/en-us/library/hh440160(v=vs.85).aspx).

6.11. ‘RealWoW!’ (Wake-On-WAN) Technology

needed.

The RTL8153 supports Realtek 'RealWoW!' technology that allows the RTL8153 to send

keep-alive packets to the Wake Server when the PC is in sleeping mode. Realtek 'RealWoW!'

can pass wake-up packets through a NAT (Network Address Translation) device. This feature

allows PCs to reduce power consumption by remaining in low power sleeping state until

Users can login into the Wake Server via the Internet to wake the selected sleeping PC. Registration of

Account information to the Wake Server is required on first time use.

6.12. Energy Efficient Ethernet (EEE)

The RTL8153 supports IEEE 802.3az-2010, also known as Energy Efficient Ethernet (EEE), at 10Mbps,

100Mbps, and 1000Mbps. It provides a protocol to coordinate transitions to/from a lower power

consumption level (Low Power Idle mode) based on link utilization. When no packets are being

transmitted, the system goes to Low Power Idle mode to save power. Once packets need to be

transmitted, the system returns to normal mode, and does this without changing the link status and

without dropping/corrupting frames.

To save power, when the system is in Low Power Idle mode most of the circuits are disabled, however,

the transition time to/from Low Power Idle mode is kept small enough to be transparent to upper layer

protocols and applications.

EEE also specifies a negotiation method to enable link partners to determine whether EEE is supported

and to select the best set of parameters common to both devices.

Refer to http://www.ieee802.org/3/az/index.html for more details.

Integrated 10/100/1000M Ethernet Controller for USB Applications

15

Track ID: JATR-8275-15 Rev. 1.1

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