What is MDC and MDIO in Ethernet?
• MDC (Management Data Clock) sourced continuously from STA (station. management entity) • MDIO (Management Data Input/Output)
What is MDC in Ethernet?
The MDIO bus has two signals: Management Data Clock (MDC) and Managment Data Input/Ouput (MDIO). MDIO has specific terminology to define the various devices on the bus. The device driving the MDIO bus is identified as the Station Management Entity (STA).
What is MDIO in Ethernet?
Management Data Input/Output (MDIO), also known as Serial Management Interface (SMI) or Media Independent Interface Management (MIIM), is a serial bus defined for the Ethernet family of IEEE 802.3 standards for the Media Independent Interface, or MII.
What is MDC and MDIO?
▪ Supports up to 4.4 MHz in the clock bus (mdc) ▪ Compliant with IEEE 802.3 Clause 45. ▪ Automatically allocates memory for the register spaces that can be. configured through an intuitive, easy-to-use graphical configuration GUI. General Description.
Is MDIO a I2C?
MDIO – A short history For most pluggable optical transceivers the interface used for monitor and control is the I2C interface. Defined as part of MII in IEEE802. MDIO works with 1.2V supply with a clock rate of 4MHz (downward compatibility to 100 kHz).
Is MDIO open drain?
The MDIO bus is not open-drain, when a device transmits data, the pin will change to push-pull output. So yes, it can cause damage, but as the outputs will not be constantly driving the pins to opposite logic states, there is less likely to be damage.
Is Mdio open drain?
Does MDC need pull up?
MDC is unidirectional and push pull – > Input side of the LSF doesnt need pullup resistor. Output side will need pullup resistor. TXS0102 can support both without the need for pullup resistor on either input or output side.
Is Mdio a I2C?
What is the difference between MAC and PHY?
Following table mentions difference between PHY and MAC layers….Difference between PHY and MAC layer.
| Parameters | PHY Layer | MAC Layer |
|---|---|---|
| Unit of data exchanged | Bits | Frames |
| Interfaces | It interfaces with medium wired/wireless (RF) through ADC/DAC at one end and MAC layer at the other end | It interfaces with PHY at one end and network layer at the other end |