A2111

A2111 Preliminary Product Brief Skyhawk 10 Gigabit Ethernet LAN/WAN PHY Overview The Skyhawk is a highly integrated, ultra-low-power frame processing solution for 10 Gigabit Ethernet (10 GbE) physical layer applications. The device provides complete PCS-R, PCS-W, and WIS functionality and can operate as a 10 GbE LAN or WAN PHY. In 10 GbE WAN PHY mode, the line-side supports a standard 16-bit, 622.08 MHz XSBI / SFI-4 interface. In 10 GbE LAN PHY mode, the line-side supports a standard 16-bit, 644.53 MHz XSBI interface. The system-side interface is a selectable standard HSTL XGMII or SSTL-2 XGMII interface. PCS layer functions include 64b/66b encoding and decoding, X58 scrambling and descrambing, gear boxing, and rate matching. Block-lock detection and remote and local fault handling are also supported. WIS functions include WIS framing, pointer processing, and X7 scrambling and descrambling, as well as error rate monitoring and alarm processing per ANSI T1-416 – 1999. For device control and configuration, the Skyhawk provides a standard 32-bit processor interface, as well as a Management Data I/O (MDIO) interface and MDIO registers. The device conforms to the IEEE serial LAN-PHY and WAN-PHY proposals. A key application for the device is to facilitate cost-effective interfacing between standard 10 Gbps optical modules with XSBI interfaces and link layer devices with XGMII interfaces. Other applications include optical core routers, enterprise switches, and Ethernet line termin...