General Description The KS8995M is a highly integrated Layer-2 managed 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 such as tag/port-based VLAN, QoS (Quality of Service) priority, management, MIB counters, dual MII interfaces and CPU control/data interfaces 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 • 1.4Gbps high-performance memory bandwidth • 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) • 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 • 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 percent control – global and per-port basis • Optimization for fiber-to-copper media conversion • Full-chip hardware power-down support (register configuration not saved) (Continue ...) 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
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