| 摘要 |
A network interface includes a medium access control (MAC) device that operates at a first voltage level during an inactive mode and a second voltage level during an active mode. A physical layer (PHY) device communicates with the MAC device and that includes an energy detect module that detects energy on a medium during the inactive mode, and an energy save module that starts timing a first period after the energy is detected and that causes the MAC device to transition to the second voltage level when the energy is detected during the inactive mode, wherein external communication with the MAC device is enabled after the first period.
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