Management Data Input/Output, or MDIO, is a serial bus defined for the Ethernet IEEE 802.3 specification for Media Independent Interface, or MII. The MII connects Media Access Control (MAC) devices with physical bus interface, or PHY, circuits. The MII comprises:
A data interface to the Ethernet link and a management interface, referred as MDIO or as Media Independent Interface Management (MIIM).
The MDIO bus provides access to the configuration & status registers of each PHY. These registers are used to initially configure each PHY and also to monitor status during operation
Buffering a buffer is a region of memory used to temporarily hold data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a Mouse) or just before it is sent to an output device (such as Speakers). However, a buffer may be used when moving data between processes within a computer. This is comparable to buffers in telecommunication. Buffers can be implemented in either hardware or software, but the vast majority of buffers are implemented in software. Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler or in online video streaming.
A buffer often adjusts timing by implementing a queue (or FIFO) algorithm in memory, simultaneously writing data into the queue at one rate and reading it at another rate.
A data interface to the Ethernet link and a management interface, referred as MDIO or as Media Independent Interface Management (MIIM).
The MDIO bus provides access to the configuration & status registers of each PHY. These registers are used to initially configure each PHY and also to monitor status during operation
Buffering a buffer is a region of memory used to temporarily hold data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a Mouse) or just before it is sent to an output device (such as Speakers). However, a buffer may be used when moving data between processes within a computer. This is comparable to buffers in telecommunication. Buffers can be implemented in either hardware or software, but the vast majority of buffers are implemented in software. Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler or in online video streaming.
A buffer often adjusts timing by implementing a queue (or FIFO) algorithm in memory, simultaneously writing data into the queue at one rate and reading it at another rate.
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