BCM5421 FEATURES
• Fully integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet transceiver
• On-chip low-voltage regulators
• Fully compliant with IEEE 802.3, 802.3u, and 802.3ab standards
• 0.13um CMOS — low-power and cost
• Low power
   • 1W per port
   • Wake on LAN support
   • Advanced power management
• Low EMI emissions
• Ethernet@WireSpeedTM logic automatically selects the maximum speed based on channel conditions
• Cable plant diagnostic
   • Cable plant analyzer function detects cable plant impairments
   • Link quality indication LED
   • Automatic detection and correction of wiring pair swaps, pair skew, and pair polarity
   • Automatic MDI/MDIX crossover at all speeds
• Robust CESD tolerance
• Support for jumbo packets up to 9 KB
• IEEE 1149.1 (JTAG) boundary scan
• MII, GMII, TBI, RGMII, and RTBI interface options
• 117 BGA and 128 MQFP