RTL8153-VB

Datasheet

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

16

Track ID: JATR-8275-15

Rev. 1.3

6.13. XTAL-Less Wake-On-LAN

The RTL8153-VB supports board level design with an External 25MHz or 48MHz Clock Source instead

of the Crystal.

The external clock source may stop generating the clock when in suspend mode (S3/S4/S5). To support

the Wake-On-LAN function without an external clock source, the RTL8153-VB will automatically

change its source clock from the external clock to an internal self-oscillating auxiliary clock when it

enters suspend mode. Note that when in suspend mode, the auxiliary clock can establish only a 10Mbps

link and does not support ARP/NS offload and ECMA ProxZzzy.

6.14. LAN Disable Mode

The RTL8153-VB supports ‘LAN Disable Mode’ that can use an external signal to control whether the

NIC is enabled or disabled.

6.15. Always On Always Connected

The RTL8153-VB supports Microsoft’s AOAC (Always On Always Connected) model. The AOAC

platform can enter the system state ‘Connected Standby’ and allow the RTL8153-VB to enter a

low-power state. The RTL8153-VB will maintain Layer 2 connectivity and generate a wake signal when

one of the following conditions is satisfied:

• Link status becomes ‘connected’

• Link status becomes ‘disconnected’

• Receives a WOL pattern

• Receives a wildcard pattern