SNLS614A September 2018 – December 2018 DP83869HM
The DP83869HM is a 10/100/1000 Copper and Fiber Ethernet PHY. It supports connections to an Ethernet MAC through SGMII or RGMII. MII is also supported but only for 100M and 10M speeds. For MII to be operate correctly, 1000M advertisement should be disabled. SGMII is not available in Fiber Ethernet mode and Media Convertor mode because the SGMII pins are multipurpose pins which carry Fiber Ethernet signals. Connections to the Ethernet media are made through the IEEE 802.3 defined Media Dependent Interface.
When using the device for Ethernet application, it is necessary to meet certain requirements for normal operation of the device. The following typical application and design requirements can be used for selecting appropriate component values for the DP83869.