Xycom Xembedded XPMC-6710, Reference Manual

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XPMC-6710 PrPMC Hardware Reference Manual
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BCM5461S Gigabit Transceiver
The BCM5461S is a fully integrated 10/100/1000Base-t Gigabit Ethernet transceiver
optimized for low power. The BCM5461S's Digital Signal Processor-based architecture and
advanced power management techniques combine to achieve robust and low-power operation
over the existing CAT 5 twisted-pair wiring. The BCM5461S architecture also meets the
requirements of 802.3, 802.3u, and 802.3ab, but maintains the industry's highest level of
margin over IEEE requirements for Echo, NEXT, and FEXT. Low power is a key factor in
implementing Gigabit small form factor NICs and uplinks, less than 700 mW per port, the
BCM5461S has the industry's lowest power requirement. For NIC applications, support for
Wake on LAN enables compliance with PCI 2.2 and PC99/PC2000. Also, the BCM5461S has
extremely low EMI emissions, which reduces the design constraints required to meet EMI
emission specifications.
Features:
• Fully integrated 10BaseT/100BaseTX/1000BaseT Gigabit Ethernet transceiver
• GMII, RGMII, SGMII, SerDes, RTBI and MII MAC Interface options
• 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