General Description

The KS8995MA/FQ is a highly-integrated Layer 2 managed switch with optimized bill of materials (BOM) cost for low port count, cost-sensitive 10/100Mbps switch systems with both copper and optic fiber media. It also provides an extensive feature set such as tag/port based VLAN, quality of service (QoS) priority, management, MIB counters, dual MII interfaces and CPU control/data interfaces to effectively address both current and emerging fast Ethernet applications.

特性 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 non blocking configuration

? 1.4Gbps high-performance memory bandwidth

? 10BASE-T, 100BASE-TX, and 100BASE-FX modes

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

? IEEE 802.1q tag-based VLAN (16 VLANs, full-range VID) for DMZ port, WAN/LAN separation or inter VLAN switch links

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

? Programmable rate limiting 0Mbps to 100Mbps, ingress and egress port, rate options for high and low priority, per-port basis in 32Kbps increments

? Flow control or drop packet rate limiting (ingress port)

? Integrated MIB counters for fully-compliant statistics gathering, 34 MIB counters per port

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

? IGMP v1/v2 snooping for multicast packet filtering

? Special tagging mode to send CPU info on ingress packet’s port value

? SPI slave (complete) and MDIO (MII PHY only) serial management interface for control of register configuration

? MAC-id based security lock option

? Control registers configurable on-the-fly (port priority, 802.1p/d/q, AN...)

? CPU read access to MAC forwarding table entries

? 802.1d spanning tree protocol

? Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port or MII

? Broadcast storm protection with 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)

? 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)

? Wire-speed reception and transmission

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

? 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/MDI-X option

? Low power:

? Core: 1.8V

? Digital I/O: 3.3V

? Analog I/O: 3.3V

? 0.18μm CMOS technology

? Temperature ranges:

? Commercial: 0°C to +70°C

? Industrial: –40°C to +85°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

? Managed media converter