PHY



PHY(Port Physical Layer),中文可以称之为端口物理层。是一个对OSI模型实体层的共同简称。
PHY连接一个数据链路层的设备(MAC)到一个物理媒介,如光纤或铜缆线。典型的PHY包括PCS(Physical Coding Sublayer,物理编码子层)和PMD(Physical Media Dependent,物理介质相关子层)。PCS对被发送和接受的信息加码和解码,目的是使接收器更容易恢复信号。
单词 | PHY |
释义 |
PHY
中文百科
PHY![]() ![]() ![]() PHY(Port Physical Layer),中文可以称之为端口物理层。是一个对OSI模型实体层的共同简称。 PHY连接一个数据链路层的设备(MAC)到一个物理媒介,如光纤或铜缆线。典型的PHY包括PCS(Physical Coding Sublayer,物理编码子层)和PMD(Physical Media Dependent,物理介质相关子层)。PCS对被发送和接受的信息加码和解码,目的是使接收器更容易恢复信号。
英语百科
PHY (chip)PHY is an abbreviation for the physical layer of the OSI model and refers to the circuitry required to implement physical layer functions. A PHY connects a link layer device (often called MAC as an abbreviation for media access control) to a physical medium such as an optical fiber or copper cable. A PHY device typically includes a Physical Coding Sublayer (PCS) and a Physical Medium Dependent (PMD) layer. The PCS encodes and decodes the data that is transmitted and received. The purpose of the encoding is to make it easier for the receiver to recover the signal. |
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