KSZ8995XA

www.DataSheet4U.com KS8995XA Micrel, Inc. KS8995XA Integrated 5-Port 10/100 QoS Switch Rev. 2.3 General Description The KS8995XA is a highly integrated Layer-2 quality of service (QoS) switch with optimized bill of materials (BOM) 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. The KS8995XA contains five 10/100 transceivers with patented mixed-signal low-power technology, five media access control (MAC) units, a high-speed non-blocking switch fabric, a dedicated address lookup engine, and an on-chip frame buffer memory. All PHY units support 10BASE-T and 100BASE-TX. In addition, two of the PHY units support 100BaseFX (Ports 4 and 5). 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 10BASE-T, 100BASE-TX and 100BASE-FX 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 ...