Power supply: 2,5V or 3,3V
Integrated voltage regulator to allow operation from a single supply source
Power consumtion: < 275mW
HP auto-MDIX
Cable length indication
Cable noise level indication
Cable length greater than 140 meters
10BASE-T/100BASE-TX/FX IEEE 802.3u fast Ethernet transceiver
MII and RMII condigurable
64pin TQFP
BCM5221.pdf