The Texas Instruments DP83849 series Drivers Interface ICs are dual-port 10/100-Mbps Ethernet PHY transceivers with flexible port switching. They have a suite of features that provide extensive link and cable diagnostic features without the need for additional hardware. These features allow for significant in-system diagnostic capabilities, and even allow for the ability to detect or predict potential cabling issues prior to catastrophic failure.
The DP83849I is an industrial temperature, dual-port 10/100-Mbps Ethernet PHY transceiver with flexible port switching. It has a 3.3-V MAC Interface; Auto-MDIX for 10/100 Mb/s; Energy Detection Mode; Flexible MII Port Assignment; Dynamic Integrity Utility; Dynamic Link Quality Monitoring; TDR based Cable Diagnostic and Cable Length Detection; Optimized Latency for Real-Time Ethernet Operation; Reference Clock Out; RMII Rev. 1.2 Interface (Configurable) SNI Interface.