PM7354

PM7354 S/UNI Duplex GE Preview Monolithic IC for ATM to Ethernet Interworking at GE Wire Speed FEATURES The S/UNI DUPLEX GE is a monolithic integrated circuit supporting wire speed ATM to Ethernet inter-working at GE rates. It provides the AAL5 SARing, queuing/buffering, traffic management, address translation, and multicast functions necessary for interfacing an ATM Utopia Level 2/POS-PHY Level 2 interface to 10/100/1000 Ethernet interfaces. The extended (up to 144 ports) Utopia Level 2 bus is designed to accommodate the higher line densities typical of ADSL DSLAMs. The dual Ethernet integrated SERDES accommodates backplane applications where a 1:1 redundant Ethernet interface is required. A separate parallel Ethernet port creates the high performance local interface needed for packet add/drop applications such as IGMP snooping. www.DataSheet4U.com INTERFACES Dual fully integrated, 1.25Gbit/s, 8B10B encoded 4-wire LVDS SERDES interface for connecting the internal GE MACs directly to a high-speed, redundant serial back-plane or external PHY. An additional (R)GMII / (R)MII parallel Ethernet interface, which can also be configured as two RMII interfaces. One 52 MHz, 16 bit Utopia Level 2 interface (Tx and Rx), extended to support up to 144 PHYs as per ATM Forum Utopia Level 2 specification afphy-0039.000, Appendix 1. This interface is also configurable as a SATURN compliant 52-MHz, 16-bit POS-PHY Level 2 interface (Tx and Rx) One asynchronous 16 bit CPU interface...