BCM5488S OCTAL-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER FEATURES SUMMARY OF BENEFITS Eight fully-integrated 10BASE-T/100BASE-TX/1000BASE-T Low-power, octal-port integration enables single-row, high- Gigabit Ethernet transceivers port density switches. - Lowers system costs by eliminating PCB layers required for SGMII and SerDes MAC interface options routing high-density solutions. Ethernet Wirespeed and super isolate mode support - Reduced I/O pin requirements with SGMII (over 75%) and SerDes (over 80%). Fully compliant with IEEE 802.3, IEEE 802.3u, and - Lowers MAC/switch costs by reducing the number of pins IEEE 802.3ab standards required to interface with the PHY. 0.13-micron CMOSlow power and cost Provides compatibility with IEEE standard devices operating at 10 Mbps, 100 Mbps, and 1000 Mbps at half-duplex and full- Supports line side copper or 100BASE-FX fiber mode duplex. Low power Lowers system BOM cost and simplifies system design. - <625 mW per port - Advanced power management Eases system level debug. Trace-matched output impedance Enables use of low-cost magnetics, even in high-density (48+) designs. Line-side loopback CableChecker characterizes cable plant condition and Low EMI emissions immediately indicates cabling issues. - Prevents erroneous equipment return due to bad cable CableChecker diagnostics plants. - CableChecker detection of cable plant impairments - Prevents manufacturing fallout due to bad cable plants. - Link quality indication LED - Automatic detection and correction of wiring pair swaps, Over 3 kV of CESD tolerance prevents equipment damage and pair skew, and pair polarity return. - Automatic MDI/MDIX crossover at all speeds Operates with larger packets for wider range of packet protocol Robust cable-sourced electrostatic discharge (CESD) tolerance support and improved efficiency. Support for jumbo packets up to 10 KB Ease of manufacturing with JTAG support, simplified power supply, and multiple MAC interfaces. IEEE 1149.1 (JTAG) and 1149.6 (AC-JTAG) boundary scan Package: 484-pin PBGA BCM5488S System Diagram 10/100/1000 Mbps BCM5488S Ethernet 2x8 10/100/1000BASE-T Mbps Ethernet Switch Switch RJ-45s with Integrated Magnetics BCM5488S 10/100/1000BASE-T Mbps Ethernet SwitchOVERVIEW BCM5488S TX DAC TRD 3:0 8 SGIN 8:1 XTALK TRD 3:0 7 SGMII Baseline Canceller SGOUT 8:1 Interface Wander TRD 3:0 6 Correction SCLK 8:1 TRD 3:0 5 TRD 3:0 4 Echo TRD 3:0 3 Canceller TRD 3:0 2 TRD 3:0 1 DFE/ FFE Trellis Decoder PGA ADC LED 4:1 8:1 / SLED 32:1 Timing & LED SLED CLK Phase Recovery Interface SLED STRB SLED IN Auto- Negotiation REGSUP 2:1 MII MDIO 2:1 MII Voltage MGMT REGCNTL 2:1 Registers Regulator MDC 2:1 Control REGSENV 2:1 Modes Bias RDAC 2:1 Generator REFCLK2+ Clock Generator REFCLK1+ BCM5488S Reference Design The BCM5488S consists of eight complete 10/100/1000BASE-T Gigabit This device is another member of Broadcoms 0.13-m Gigabit Ethernet Ethernet transceivers integrated on a single monolithic CMOS chip. The copper PHY family, joining more than a dozen other quad and single BCM5488S is optimized for low power and small footprint size to enable products. The 0.13-m process is the optimal process that offers the best high-port density applications. By lowering system cost and reducing performance, lowest cost, and lowest power for Gigabit Ethernet copper power dissipation by nearly 30 percent, the BCM5488S enables a new class solutions. Devices based on the 0.13-m process offer an excellent long- of cost-effective Gigabit Ethernet equipment, driving the delivery of term cost curve, enabling better cost reduction over time (compared to Gigabit Ethernet bandwidth to the desktop. older technologies) without having to redesign or requalify a new part. The BCM5488S DSP-based architecture and advanced power management Each BCM5488S port is fully independent and has individual interface, techniques combine to achieve robust and low-power operation over control, and status registers, and incorporates a number of advanced existing Category 5 twisted-pair wiring. The BCM5488S architecture not features. A link-quality indicator LED gives installers an instant visual only meets the requirements of IEEE 802.3, IEEE 802.3u, and IEEE indication if there are any problems with the wiring plant supporting 802.3ab but also maintains the industrys highest level of margin over IEEE operation at the preferred speed. This includes physical wiring defects that requirements for echo, near-end crosstalk (NEXT), and far-end crosstalk the BCM5488S cannot automatically correct for and channel conditions (FEXT). Low power is the key to implementing high-density Gigabit such as excessive cable length and return loss, crosstalk, echo, and noise. Ethernet switches, and the BCM5488S has the lowest power in the industry Broadcoms CableChecker software can be used with the device to provide at less than 625 mW per port. In addition, the BCM5488S has extremely remote management of the cable and a first level of diagnostics and fault low EMI emissions, which reduces the design constraints required to meet isolation. EMI radiation specifications. The BCM5488S has the industry s highest tolerance to electrostatic The BCM5488S supports the SGMII and SerDes MAC interfaces. The discharge (ESD). This prevents ESD damage not only during SGMII and serial SerDes interfaces are reduced pin-count (6 and 4, manufacturing but also during CESD events in the field. CESD is an ESD respectively, versus 25) versions of the GMII. These reduced pin-count event that occurs when an electrically charged network cable is plugged interfaces simplify design and lower system cost by reducing the number into a network port. This is an issue that has become more prevalent with of layers required to route high density solutions. In addition, these contemporary cable installations, and the BCM5488S can tolerate well interfaces allow fewer pins at the MAC/switch, which reduces the MAC/ over 3kV of CESD. switch cost by enabling smaller die sizes than would be possible with full GMII. Broadcom , the pulse logo, Connecting everything , and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners. BROADCOM CORPORATION Phone: 949-450-8700 16215 Alton Parkway, P.O. Box 57013 Fax: 949-450-8710 Irvine, California 92619-7013 E-mail: info broadcom.com Web: www.broadcom.com 2006 by BROADCOM CORPORATION. All rights reserved. 5488S-PB01-R 04/10/06