BCM5466R Просмотр технического описания (PDF) - Broadcom Corporation
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BCM5466R Datasheet PDF : 2 Pages
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BCM5466R
®
QUAD-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER
FEATURES
• Four fully-integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit
Ethernet transceivers
• RGMII, SGMII, and SerDes MAC interface options
• 1-Gbps line-side SerDes with an RGMII MAC interface
• Fully compliant with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab
standards
• 0.13-micron CMOS for low power consumption and low cost
• Supports copper or fiber operation in RGMII mode
• Low power
- 750 mW per port
- Advanced power management
• Trace-matched output impedance
• Line-side loopback
• Ethernet@Wirespeed™ support
• Low EMI emissions
• CableChecker™ diagnostics
- CableChecker software 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.
• Robust cable-sourced electrostatic discharge (CESD) tolerance
• Support for jumbo packets of up to 10 kB
• IEEE 1149.1 (JTAG) boundary scan
• 256-pin BGA package
SUMMARY OF BENEFITS
• Low-power, quad-port integration enables single-row, high-port-
density switches.
- Lowers system costs by eliminating PCB layers required for
routing high-density solutions.
- Reduces I/O pin requirements with RGMII (over 50%), SGMII
(over 75%), and SerDes (over 80%).
- Supports clock timing adjustment 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.
• Ethernet@Wirespeed controls auto-negotiation advertising to enable
link establishment at lower speeds when a 1000BASE link fails to be
established.
• Enables use of low-cost magnetics, even in high-density (48+ port)
designs.
• Eases system level debugging.
• CableChecker software 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.
BCM5466R System Diagram
10/100/1000
Mbps
Ethernet
Switch
BCM5466R
10/100/1000BASE-T
Gigabit Ethernet
Transceiver
BCM5466R
10/100/1000BASE-T
Gigabit Ethernet
Transceiver
BCM5466R
10/100/1000BASE-T
Gigabit Ethernet
Transceiver
2x8
RJ-45s
with
Integrated
Magnetics
BCM5466R
10/100/1000BASE-T
Gigabit Ethernet
Transceiver
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