10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER

The BCM5401 is a second-generation 10/100/1000BASE-T Gigabit Ethernet transceiver for Category 5 unshielded twisted-pair (UTP) wiring. Based on the field proven architecture of the BCM5400, it provides lower power, enhanced cable reach, improved bit error rate performance, and advanced testability and diagnostics over first generation transceivers. The device provides a complete GMII-to-magnetics solution for 10BASE-T, 100BASE-TX, and 1000BASE-T. It also provides a TBI-to-magnetics (10-bit interface) solution for designs using fiber Gigabit Ethernet ASICS. All necessary support circuitry is integrated, including the magnetic hybrid and an on-chip clock generator to provide a low-jitter, 125-MHz system clock.

FEATURES
• Fully integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet transceiver
    • IEEE 802.3, 802.3u, and 802.3ab standards
• Digital Signal Processor (DSP) based design offering robust, fully adaptive performance and simplified board design
• Field-proven design based on the BCM5400
• Register and software compatible with the BCM5400
• Advanced power management
    • Low-power 1.8V digital core
    • Wake on LAN support
• Integrated cable test features
    • Link quality indication
    • Automatic detection and correction of wiring pair swaps, pair skew, and pair polarity
    • Automatic MDI crossover
• IEEE 802.3ab standard auto-negotiation with next page support to determine operating speed
• Internal 125-MHz low-jitter clock generation
• GMII interface and 10-bit interface (TBI)
• Support for jumbo packets up to 9 KB
• JTAG test interface
• 256-pin TBGA package