DP83849C Datasheet | National Semiconductor

Description The number of applications requiring Ethernet Connectivity continues to expand. Along with this increased market demand is a change in application requirements. Where single channel Ethernet used to be sufficient, many applications such as wireless remote base stations and industrial networking now require DUAL Port functionality for redundancy or system management. The DP83849C is a highly reliable, feature rich device perfectly suited for mercial or industrial applications enabling Ethernet on the factory floor. The DP83849C features two fully independent 10/100 ports for multi-port applications. The DP83849C provides optimum flexibility in MPU selection by supporting both MII and RMII interfaces. In addition this device includes a powerful new diagnostics tool to ensure initial network operation and maintenance. In addition to the TDR scheme, monly used for detecting faults during installation, NATIONAL’s innovative cable diagnostics provides for real time continuous monitoring of the link quality. This allows the system designer to implement a fault prediction mechanism to detect and warn of changing or deteriorating link conditions. With the DP83849C, National Semiconductor continues to build on its Ethernet expertise and leadership position by providing a powerful bination of features and flexibility, easing Ethernet implementation for the system designer. Features - - - - - - - - - - - - - - - - - - - - - - Low-power 3.3V, 0.18µm CMOS technology Low power consumption <600m W Typical 3.3V MAC Interface Auto-MDIX for 10/100 Mb/s Energy Detection Mode 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 (configurable) MII Serial Management Interface (MDC and MDIO) IEEE 802.3u MII IEEE 802.3u Auto-Negotiation and Parallel Detection IEEE 802.3u ENDEC, 10BASE-T...