A highly integrated solution combining all the functions of a high-speed switch system — including packet buffer, PHY transceivers, media access controllers, address management and a nonblocking switch fabric — into a single 0.13-micron CMOS device.
The Broadcom BCM5388 device is a highly integrated solution. It combines all the functions of a high-speed switch system, including packet buffer, physical layer transceivers, media access controllers, address management and a nonblocking switch fabric, into a single 0.13-micron CMOS device. It complies with IEEE 802.3, 802.3u, 802.3ab and 802.3x specifications, including the MAC control, pause frame and autonegotiation subsections, providing compatibility with all industry standard Ethernet, Fast Ethernet and Gigabit Ethernet devices. This device contains four full-duplex 10/100/1000BASE-T transceivers, each of which performs all of the physical layer interface functions for 10BASE-T Ethernet on Category 3, 4 or 5 unshielded twisted-pair (UTP) cable and 100/1000BASE-T Fast/Gigabit Ethernet on Category 5 UTP cable. The remaining four ports feature a standard RGMII interface to allow connection to Broadcom's market-leading 10/100/1000 transceiver family to provide fiber or copper Gigabit Ethernet connections. The media access controllers on the BCM5388 also support Jumbo Frames, which are typically used for high-performance connections to servers because they offer a smaller percentage of overhead on the link for more efficiency.
Eight-port Gigabit Layer 2 switch processor
Integrates GbE copper PHY ports and memory to reduce power and board space
Provides wire-speed switching performance
Features 9k Jumbo Frame support and MAC-based Trunking with failover