The DP83843BVJE is a full feature Physical Layer device with integrated PMD sublayers to support both 10BASE-T and 100BASE-X Ethernet protocols.
●This VLSI device is designed for easy implementation of 10/100 Mb/s Ethernet LANs. It interfaces directly to Twisted Pair media through an external transformer or to fiber media via industry standard electrical/optical fiber PMD transceivers. This device also interfaces directly to the MAC layer through the IEEE 802.3u standard Media Independent Interface (MII), ensuring interoperability between products from different vendors.
●The DP83843 is designed with National Semiconductors advanced CMOS process. Its system architecture is based on the integration of several of National"s industry proven core technologies:
● IEEE 802.3 ENDEC with AUI/10BASE-T transceiver module to provide the 10 Mb/s functions
● Clock Recovery/Generator Modules fromNational"s Fast Ethernet and FDDI products
● FDDI Stream Cipher scrambler/descrambler for TP-PMD
● 100BASE-Xphysical codingsub-layer (PCS) andcontrol logic that integrates the core modules into a dual speed Ethernet physical layer controller
● ANSI X3T12 Compliant TP-PMD Transceiver technology with Baseline Wander (BLW) compensation
● IEEE 802.3 ENDEC with AUI/10BASE-T transceivers
●and built-in filters
● IEEE 802.3u 100BASE-TX compatible - directly drives
●standard Category 5 UTP, no need for external
●100BASE-TX transceiver
● Fully Integrated and fully compliant ANSI X3.263 TPPMD
●physical sublayer which includes adaptive equalization
●and BLW compensation
● IEEE 802.3u 100BASE-FX compatible - connects directly
●to industry standard Electrical/Optical transceivers
● IEEE 802.3u Auto-Negotiation for automatic speed selection
● IEEE 802.3u compatible Media Independent Interface
●(MII) with Serial Management Interface
● Integrated high performance 100 Mb/s clock recovery
●circuitry requiring no external filters
● Full Duplex support for 10 and 100 Mb/s data rates
● MII Serial 10 Mb/s mode
● Fully configurable node/switch and 100Mb/s repeater
●modes
● Programmable loopback modes for flexible systemdiagnostics
● Flexible LED support
● Single register access to complete PHY status
● MDIO interrupt support
● Individualized scrambler seed for 100BASE-TX applications
●using multiple PHYs
● Low power consumption for multi-port applications
● Small footprint 80-pin PQFP package
