KS8995X集成電路（IC）的專(zhuān)用IC規(guī)格書(shū)PDF中文資料

General Description

The KS8995X is a highly integrated Layer-2 QoS (Quality of Service) switch with optimized BOM (Bill of Materials) cost for low port count, cost-sensitive 10/100Mbps switch systems. It also provides an extensive feature set including three different QoS priority schemes, a dual MII interface for BOM cost reduction, rate limiting to offload CPU tasks, software and hardware power-down, a MDC/MDIO control interface and port mirroring/monitoring to effectively address both current and emerging Fast Ethernet applications.

Features

? Integrated switch with five MACs and five Fast Ethernet transceivers fully compliant to IEEE 802.3u standard

? Shared memory based switch fabric with fully nonblocking configuration

? 10BaseT, 100BaseTX and 100BaseFX modes (FX in Ports 4 and 5)

? Dual MII configuration: MII-Switch (MAC or PHY mode MII) and MII-P5 (PHY mode MII)

? VLAN ID tag/untag options, per-port basis

? Enable/disable option for huge frame size up to 1916 bytes per frame

? Broadcast storm protection with percent control – global and per-port basis

? Optimization for fiber-to-copper media conversion

? Full-chip hardware power-down support (register configuration not saved)

? Per-port-based software power-save on PHY (idle link detection, register configuration preserved)

? QoS/CoS packets prioritization supports: per port, 802.1p and DiffServ based

? 802.1p/q tag insertion or removal on a per-port basis (egress)

? Port-based VLAN support

? MDC and MDI/O interface support to access the MII PHY control registers (not all control registers)

? MII local loopback support

? On-chip 64Kbyte memory for frame buffering (not shared with 1K unicast address table)

? 1.4Gbps high-performance memory bandwidth

? Wire-speed reception and transmission

? Integrated look-up engine with dedicated 1K unicast MAC addresses

? Automatic address learning, address aging and address migration

? Full-duplex IEEE 802.3x and half-duplex back pressure flow control

? Comprehensive LED support

? 7-wire SNI support for legacy MAC interface

? Automatic MDI/MDI-X crossover for plug-and-play

? Disable automatic MDI/MDIX option

? Low power Core: 1.8V I/O: 2.5 or 3.3V

? 0.18μm CMOS technology

? Commercial temperature range: 0°C to +70°C

? Available in 128-pin PQFP package

Applications

? Broadband gateway/firewall/VPN

? Integrated DSL or cable modem multi-port router

? Wireless LAN access point plus gateway

? Home networking expansion

? Standalone 10/100 switch

? Hotel/campus/MxU gateway

? Enterprise VoIP gateway/phone

? FTTx customer premise equipment

? Media converter