BCM5704/BCM5704C pdf datasheet

The BCM5704C is a fully integrated dual-port, 10/100/1000BASE-T
Gigabit Ethernet media access control and physical layer transceiver
solution for high-performance network applications. The BCM5704C is
a highly integrated solution combining two triple-speed, IEEE 802.3-
compliant media access control (MAC), PCI, and PCI-X bus interfaces,
an on-chip buffer memory, and an integrated physical layer transceiver
in a single device. The BCM5704C is fabricated in a low-voltage, 0.13-
μm CMOS process providing a low-power system solution. By itself the
BCM5704C provides a complete single-chip dual-port Gigabit Ethernet
NIC or LoM solution.
The BCM5704C includes two 10/100/1000-Mbps Ethernet MACs with
full/half-duplex capability at all speeds and two 10/100/1000 copper
PHYs. Support for the following 802.3 functions is featured in the MAC:
VLAN tagging, layer 2 priority encoding, link aggregation, and fullduplex
flow control.