Virtual interface to the PoE device through an expanded registered map in a networking device such as a PHY

摘要

Provided is a Power over Ethernet (PoE) device. The PoE device includes a physical layer device (PHY) including a first number of registers PHY and a power sourcing equipment (PSE) device. The PSE device (i) includes a second number of registers and (ii) is electrically coupled to the PHY. The contents of one of the first and second number of registers is an extension of the other of the first and second number of registers.

主权项

1. A first Power over Ethernet (PoE) device, comprising:
a PoE controller, including a first number of PoE control registers, configured to control a transfer of power between the first PoE device and a second PoE device over a communication link; a physical layer device (PHY), including a second number of PoE control registers, configured to communicate data between the first PoE device and the second PoE device over the communication link, the second number of PoE control registers corresponding to the first number of PoE control registers; and an electrical isolator, coupled to the PHY, configured to enable the first number of PoE control registers to be substantially simultaneously programmed with contents of corresponding registers within the second number of PoE control registers when the second number of PoE control registers are programmed.