BCM5402 PRODUCT Brief ® BCM5402 DUAL-PORT 10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER B C M 5 4 0 2 S U M M A R Y F E AT U R E S fully integrated 10BASE-T/100BASE-TX/ • Two 1000BASE-T Gigabit Ethernet transceivers on a single monolithic CMOS chip Fully compliant with IEEE 802.3, 802.3u, and 802.3ab • standards • Low power • Less than 2W per port • Advanced power management • Wake On LAN mode—less than 600 mW per port • MII, GMII, TBI, RGMII, and RTBI interface options automatically selects the • Ethernet@WireSpeed maximum speed based on channel conditions • Cable plant diagnostic TM O F B E N E F I T S Low power dual-port integration enables high port • density switches and dual-port adapter cards. Compatible with IEEE standard devices operating at • 10, 100, and 1000 Mbps at half- and full-duplex. • No airflow or heatsink required. on LAN mode for low power PC’99 compliant • Wake adapters (less than 600 mW per-port). RGMII/RTBI reduces I/O pin requirement over GMII • and TBI by more than 50%. configures the link to support the • Automatically highest possible speed based on link partner capability and characteristics of the channel. Cable diagnostic function characterizes cable plant • condition and immediately indicates cabling issues. • 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 • Prevents erroneous equipment return due to bad cable plants. • Prevents manufacturing fall-out due to bad cable plants. 125-MHz clock eliminates costly external clocking • circuitry for the MAC/ASIC. Operates with larger packets for wider range of packet • protocol support and improved efficiency. High density package options without heatsink • requirement provides improved testability. • Internal 125-MHz low-jitter clock generation • Support for jumbo packets up to 9 KB • IEEE 1149.1 (JTAG) boundary scan • 256-pin TBGA and 260FPBGA 10/100/1000 Mbps Ethernet Switch BCM5402 BCM5402 BCM5402 BCM5402 10/100/1000BASE-T Gigabit Ethernet Transceiver Dual Transformer Dual Transformer Dual Transformer Dual Transformer RJ-45 Connectors BCM5402 System Diagram