BCM5488 ® OCTAL-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER SUMMARY OF BENEFITS FEATURES • Eight fully integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet transceivers • RGMII, SGMII, and SerDes MAC interface options • 1-Gbps lineside SerDes with RGMII MAC interface option • Fully compliant with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab standards • 0.13-micron CMOS—low power and cost • Supports copper or fiber in RGMII mode • Low power • <625 mW per port • Advanced power management • Trace-matched output impedance • Lineside loopback high-port density switches • Lowers system costs by eliminating PCB layers required for routing high-density solutions • Reduced I/O pin requirements with RGMII (over 50%), SGMII (over 75%), and SerDes (over 80%) • Clock timing can be adjusted to eliminate board trace delays required by the RGMII specification • Lowers MAC/switch costs by reducing the number of pins required to interface with the PHY • Provides compatibility with IEEE standard devices operating at 10, 100, and 1000 Mbps at half-duplex and full-duplex • Lowers system BOM cost and simplifies system design • Eases system level debug • Enables use of low-cost magnetics, even in high-density (48+) • Low EMI emissions • CableChecker™ diagnostics • • CableChecker detection of 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 cable-sourced electrostatic discharge (CESD) tolerance • Support for jumbo packets up to 10 KB • IEEE 1149.1 (JTAG) boundary scan • Package: 484-pin PBGA • Low-power, octal-port integration enables single-row, • • • designs CableChecker characterizes cable plant condition and immediately indicates cabling issues • Prevents erroneous equipment return due to bad cable plants • Prevents manufacturing fallout due to bad cable plants Over 3 kV of CESD tolerance prevents equipment damage and return Operates with larger packets for wider range of packet protocol support and improved efficiency Ease of manufacturing with JTAG support, simplified power supply, and multiple MAC interfaces BCM5488 10/100/1000BASE-T Gigabit Ethernet Transceiver 2x8 RJ-45s BCM5488 with integrated magnetics 10/100/1000 Mbps Ethernet Switch BCM5488 System Diagram