BCM5481 データシートの表示（PDF） - Broadcom Corporation
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BCM5481 Datasheet PDF : 2 Pages
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BCM5481
®
10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER
FEATURES
SUMMARY OF BENEFITS
• Fully integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit
Ethernet transceiver
• GMII, RGMII, and MII MAC interface options
• On-chip low-voltage regulators
• Fully compliant with IEEE 802.3™, 802.3u, and 802.3ab standards
• 0.13µ CMOS—low power and cost
• Low power
- Less than 700 mW per port
- Advanced power management
• Trace matched output impedance
• Line-side loopback
• Low electromagnetic interference (EMI) emissions
• Cable-plant diagnostics
- 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
• Robust CESD tolerance
• Support for jumbo packets up to 10 KB
• IEEE 1149.1 (JTAG) boundary scan
• 64-pin MLP, 68-pin MLP, 100-pin FBGA, and 100-pin QFP
packages
• Simplifies system and board design.
- Reduced I/O pin requirements with RGMII (over 50%).
- On-chip RGMII timing delay
• Provides interoperability with IEEE standard devices
operating at 10 Mbps, 100 Mbps, and 1000 Mbps at half- and
full-duplex.
• Lowers system bill of materials (BOM) cost and simplifies
system design.
• Requires no airflow or heatsink.
• Eases system level debug.
• Reduces system design constraints to meet EMI emissions
standards.
• Cable diagnostic function characterizes cable plant condition
and immediately indicates cabling issues.
- Prevents erroneous equipment return due to bad cable
plants.
- Prevents manufacturing fall-out due to bad cable plants.
• High 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.
MAC
BCM5481
General Gigabit Ethernet Connectivity
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24FE +2G
S witch
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