Micrel, Inc. KS8995MA/FQ 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 • 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 interVLAN 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 • 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: • Enable/Disable option for huge frame size up to 1916 bytes per frame • IGMP v1/v2 snooping for multicast packet filtering − Commercial: 0°C to +70°C • Special tagging mode to send CPU info on ingress packet’s port value − Industrial: –40°C to +85°C • • SPI slave (complete) and MDIO (MII PHY only) serial management interface for control of register configuration Applications • MAC-id based security lock option • Control registers configurable on-the-fly (portpriority, 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: − • • • • • • • • • • Available in 128-pin PQFP package 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 Per port, 802.1p and DiffServ based 802.1p/q tag insertion or removal on a per-port basis (egress) October 2011 2 M9999-102611-3.0
