About 50 results
Open links in new tab
  1. What does "PHY" refer to? - Electrical Engineering Stack Exchange

    Oct 20, 2021 · a PHY is a type of Ethernet physical layer (eg. 100BASE-TX, 10BASE-T) a PHY is an Ethernet transceiver IC (eg. an IC that converts 100BASE-TX to MII/RMII) a PHY is a physical layer …

  2. microcontroller - Why are Ethernet MAC and PHY separate? - Electrical ...

    Dec 16, 2022 · The PHY also dissipates a significant amount of power all by itself. And sometimes different media require different PHYs, but the MAC can be the same. For all of these reasons, it …

  3. what is the difference between PHY and MAC chip

    Jul 11, 2013 · what is the difference between PHY and MAC chip Ask Question Asked 12 years, 9 months ago Modified 12 years, 9 months ago

  4. Ethernet switch IC ports in MAC and PHY mode

    Nov 8, 2021 · 1/ for port 2 and 6, the phy is external. Unfortunately though not all phy information is present on an RGMII/GMII and this is sent over MDIO/MDC. The switch needs to know you have a …

  5. Ethernet PHY and their corresponding hardware are represented Right …

    Jan 24, 2024 · PHY->RJ45 The magnetics also, are always shown on the left of the port, and their pin order, packaging, and the way they are drawn implies that the port is going to be on their right …

  6. Ethernet Transmission with one MAC and Multiple PHYs

    Dec 17, 2017 · Typically, a set of MII lines are connected from the MAC to a single PHY. The reason for multiple addresses for MDIO is for SOCs that contain multiple MAC modules and for switch chips. …

  7. Why do Ethernet PHY magnetics have a center tap?

    May 23, 2023 · I've a question with the Ethernet PHY connection to the RJ45 connector. With either discrete or integrated magnetics, either with voltage mode PHY or current mode PHY, what is the …

  8. Connecting a PHY to another PHY on a same board

    Aug 14, 2022 · Generally, if I'm connecting a PHY to RJ45 connector, I would add center tap capacitors and Bob-Smith termination like below. But if I am connecting a PHY to another PHY, do I still need …

  9. In USB, what is the difference between a PHY and a transceiver?

    Mar 26, 2013 · A Phy is similar to a transceiver in that there is usually different signal standards on "both sides of the chip". With Ethernet it is MII/GMII/etc on one side and, well, Ethernet on the other.

  10. Voltage mode Ethernet PHY and Current mode Ethernet PHY

    Jun 7, 2022 · 2 In the Ethernet PHY, we have two types. Voltage mode PHY and current mode PHY. Can anyone tell me the reason why the center taps of magnetics are shorted in case of connection to …