BCM5488
OCTAL-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER
BCM5488 System Diagram
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
Low EMI emissions
CableCheckerTM 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,
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+)
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
F E A T U R E S
S U M M A R Y O F B E N E F I T S
BCM5488
BCM5488
10/100/1000BASE-T
Gigabit Ethernet
Transceiver
2x8 RJ-45s
with integrated magnetics
10/100/1000 Mbps
Ethernet Switc
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